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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Siebengebirge, Cologne, North Rhine-Westphalia, Germanyi
Regional Level Types
SiebengebirgeRange of Mountains and Hills
CologneAdministrative District
North Rhine-WestphaliaState
GermanyCountry

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PhotosSearchMineralogy
04385660017272726193698.jpg
Geological map of v. Dechen (1861)

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
05059530017272252512023.jpg
Weilberg Quarry

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
06128690017272252513487.jpg
Weilberg Quarry

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
04385660017272726193698.jpg
Geological map of v. Dechen (1861)

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
05059530017272252512023.jpg
Weilberg Quarry

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
06128690017272252513487.jpg
Weilberg Quarry

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
04385660017272726193698.jpg
Geological map of v. Dechen (1861)

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
05059530017272252512023.jpg
Weilberg Quarry

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Type:
Range of Mountains and Hills
Largest Settlements:
PlacePopulation
Königswinter41,164 (2015)
Bad Honnef25,348 (2016)
Mindat Locality ID:
132244
Long-form identifier:
mindat:1:2:132244:9
GUID (UUID V4):
0
Other Languages:
View 66 more...
French:
Siebengebirge, Cologne, Rhénanie-du-Nord-Westphalie, Allemagne
German:
Siebengebirge, Regierungsbezirk Köln, Nordrhein-Westfalen, Deutschland
Italian:
Siebengebirge, Distretto governativo di Colonia, Renania Settentrionale-Vestfalia, Germania
Russian:
Зибенгебирге, Кёльн, Северный Рейн-Вестфалия, Германия
Spanish:
Siebengebirge, Región de Colonia, Renania del Norte-Westfalia, Alemania
Afrikaans:
Siebengebirge, Noordryn-Wesfale, Duitsland
Aragonese:
Siebengebirge, Rechión de Colonia, Renania d'o Norte-Westfalia, Alemanya
Asturian:
Siebengebirge, Renania del Norte-Westfalia, Alemaña
Basque:
Siebengebirge, Kolonia, Ipar Renania-Westfalia, Alemania
Bavarian:
Siebengebirge, Nordrhein-Westfalen, Deitschland
Breton:
Siebengebirge, Nordrhein-Westfalen, Alamagn
Catalan:
Siebengebirge, Regió de Colònia, Rin del Nord-Westfàlia, Alemanya
Cebuano:
Siebengebirge, Regierungsbezirk Köln, Nordrhein-Westfalen, Alemanya
Corsican:
Siebengebirge, Nordu Renu-Westfalia, Germania
Croatian:
Siebengebirge, Sjeverna Rajna-Vestfalija, Njemačka
Czech:
Siebengebirge, Vládní obvod Kolín nad Rýnem, Severní Porýní-Vestfálsko, Německo
Danish:
Siebengebirge, Köln, Nordrhein-Westfalen, Tyskland
Dutch:
Zevengebergte, Regierungsbezirk Keulen, Noordrijn-Westfalen, Duitsland
Dutch Low Saxon:
Siebengebirge, Noordrhain-Westfele, Duutslaand
Esperanto:
Siebengebirge, Distriktaro Kolonjo, Nordrejn-Vestfalio, Germanio
Estonian:
Siebengebirge, Kölni ringkond, Nordrhein-Westfalen, Saksamaa
Finnish:
Siebengebirge, Kölnin hallintopiiri, Nordrhein-Westfalen, Saksa
Franco-Provençal:
Siebengebirge, Alemagne
Friulian:
Siebengebirge, Gjermanie
Galician:
Siebengebirge, Renania do Norte-Westfalia, Alemaña
Hungarian:
Siebengebirge, Észak-Rajna-Vesztfália, Németország
Icelandic:
Sjöfjallaland, Norðurrín-Vestfalía, Þýskaland
Ido:
Siebengebirge, Nordrheno-Vestfalia, Germania
Indonesian:
Siebengebirge, Nordrhein-Westfalen, Jerman
Interlingua:
Siebengebirge, Region administrative-governamental de Colonia, Rhenania del Nord–Westfalia, Germania
Interlingue:
Siebengebirge, Nordrhen-Westfalia, Germania
Irish Gaelic:
Siebengebirge, Tuaisceart na Réine agus an Viostfáil, An Ghearmáin
Kongo:
Siebengebirge, Nordrhein-Westfalen, Alemanyi
Latin:
Sibenus mons, Provincia Colonia Agrippina, Rhenania Septentrionalis-Vestfalia, Germania
Ligurian:
Siebengebirge, Renania do Nòrd-Vestfallia, Germania
Limburgian:
Siebengebirge, Regierungsbezirk Köln, Noordrien-Wesfale, Duitsland
Low Saxon/Low German:
Siebengebirge, Regerungsbezirk Köln, Noordrhien-Westfalen, Düütschland
Luxembourgish:
Siebengebirge, Regierungsbezierk Köln, Nordrhein-Westfalen, Däitschland
Malagasy:
Siebengebirge, Alemaina
Malay:
Siebengebirge, North Rhine-Westphalia, Jerman
Minangkabau:
Siebengebirge, Jerman
Narom:
Siebengebirge, Allemangne
Neapolitan:
Siebengebirge, Nord Reno-Westfalia, Germania
Norwegian:
Siebengebirge, Regierungsbezirk Köln, Nordrhein-Westfalen, Tyskland
Norwegian (Nynorsk):
Siebengebirge, Nordrhein-Westfalen, Tyskland
Occitan:
Siebengebirge, Colonha , Ren del Nòrd-Vestfàlia, Alemanha
Picard:
Siebengebirge, Nord-Rhénanie-Westfalie, Alemanne
Piedmontese:
Siebengebirge, Nòrd Ren-Westfalia, Almagna
Polish:
Siedmiogórze, Rejencja Kolonia, Nadrenia Północna-Westfalia, Niemcy
Portuguese:
Siebengebirge, Colónia, Renânia do Norte-Vestfália, Alemanha
Ripuarian:
Sibbejebirsch, Rejierungsbezirk Kölle, Noodrhing-Wäßßfaale, Dütschland
Romanian:
Siebengebirge, Köln, Renania de Nord-Westfalia, Germania
Romansh:
Siebengebirge, Rain dal Nord-Vestfalia, Germania
Sardinian:
Siebengebirge, Nordrhein-Westfalen, Germania
Scots:
Siebengebirge, North Rhine-Westphalie, Germany
Scottish Gaelic:
Siebengebirge, Nordrhein-Westfalen, A' Ghearmailt
Sicilian:
Siebengebirge, Girmania
Slovak:
Siebengebirge, Severné Porýnie-Vestfálsko, Nemecko
Slovenian:
Siebengebirge, Severno Porenje-Vestfalija, Nemčija
Swahili:
Siebengebirge, Rhine Kaskazini-Westfalia, Ujerumani
Swedish:
Siebengebirge, Regierungsbezirk Köln, Nordrhein-Westfalen, Tyskland
Turkish:
Siebengebirge, Köln , Kuzey Ren-Vestfalya, Almanya
Ukrainian:
Зібенгебірге, Кельн, Північний Рейн-Вестфалія, Німеччина
Venetian:
Siebengebirge, Renania Setentrional-Vestfalia, Germania
Vietnamese:
Siebengebirge, Nordrhein-Westfalen, Đức
Volapük:
Siebengebirge, Nolüdarinän-Vesfalän, Deutän
Walloon:
Siebengebirge, Almagne
Welsh:
Siebengebirge, Ardal Llywodraethol Cwlen, Nordrhein-Westfalen, Yr Almaen
West Flemish:
Siebengebirge, Noordreyn-Westfalen, Duutsland
Wolof:
Siebengebirge, Almaañ
Zulu:
Siebengebirge, IJalimani


A range of hills of volcanic origin across the Rhine valley southeast of Bonn. The Siebengebirge consists of more than 40 mountains and hills.

Numerous small volcanic occurrences in an area of c. 30 x 40 km east and south of Bonn, with 2 relatively extensive areas, one of c. 50 km² and the other c. 18 km², of trachytic tuffs (Vieten et al. 1988).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

44 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
References:
Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (1989) A Classification of Igneous Rocks and Glossary of Terms - Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1st ed.). Blackwell Scientific Publications.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
ⓘ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
ⓘ Albite var. Anorthoclase-Sanidine
Formula: (Na,K)AlSi3O8
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Andalusite
Formula: Al2(SiO4)O
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
References:
Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (1989) A Classification of Igneous Rocks and Glossary of Terms - Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1st ed.). Blackwell Scientific Publications.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
ⓘ 'Apophyllite Group'
Formula: AB4[Si8O20]X · 8H2O
ⓘ Aragonite
Formula: CaCO3
ⓘ Arfvedsonite
Formula: NaNa2(Fe2+4Fe3+)Si8O22(OH)2
References:
Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (1989) A Classification of Igneous Rocks and Glossary of Terms - Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1st ed.). Blackwell Scientific Publications.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
ⓘ Artinite
Formula: Mg2(CO3)(OH)2 · 3H2O
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chabazite'
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 6 localities in this region.
ⓘ 'Clinopyroxene Subgroup'
References:
Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (1989) A Classification of Igneous Rocks and Glossary of Terms - Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1st ed.). Blackwell Scientific Publications.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
ⓘ Cordierite
Formula: Mg2Al4Si5O18
ⓘ Corundum
Formula: Al2O3
ⓘ Corundum var. Chlorosaphir
Formula: Al2O3
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Forsterite
Formula: Mg2(SiO4)
ⓘ Galena
Formula: PbS
Localities: Reported from at least 6 localities in this region.
ⓘ Gonnardite
Formula: (Na,Ca)2(Si,Al)5O10 · 3H2O
ⓘ Graphite
Formula: C
ⓘ Haüyne
Formula: Na3Ca(Si3Al3)O12(SO4)
References:
Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (1989) A Classification of Igneous Rocks and Glossary of Terms - Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1st ed.). Blackwell Scientific Publications.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Molybdenite
Formula: MoS2
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ Native Copper
Formula: Cu
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ 'Phillipsite Subgroup'
Formula: (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
References:
Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (1989) A Classification of Igneous Rocks and Glossary of Terms - Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (1st ed.). Blackwell Scientific Publications.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Sanidine (TL)
Formula: K(AlSi3O8)
ⓘ Siderite
Formula: FeCO3
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Sphalerite
Formula: ZnS
ⓘ Spinel
Formula: MgAl2O4
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
ⓘ 'Thomsonite Subgroup'
ⓘ Titanite
Formula: CaTiO(SiO4)
ⓘ Tridymite
Formula: SiO2
ⓘ Zeophyllite
Formula: Ca13Si10O28(OH)2F8 · 6H2O
ⓘ Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 9 localities in this region.

Gallery:

CaCO3ⓘ Calcite
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Calcite, etc.

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Calcite, etc.

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Calcite, etc.

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
ⓘ 'Chabazite'
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Chabazite

Gierswiese, Bad Honnef, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Chabazite

Gierswiese, Bad Honnef, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Chabazite

Gierswiese, Bad Honnef, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Al2O3ⓘ Corundum
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Corundum, etc.

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Corundum

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Corundum, etc.

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Corundum

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Corundum, etc.

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Corundum

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Fe2+Fe3+2O4ⓘ Magnetite
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Magnetite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Magnetite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Magnetite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Magnetite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Magnetite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Magnetite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
Na2Al2Si3O10 · 2H2Oⓘ Natrolite
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Natrolite, etc.

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Natrolite

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Natrolite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Natrolite, etc.

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Natrolite

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Natrolite

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Natrolite, etc.

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Natrolite

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
SiO2 · nH2Oⓘ Opal
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Opal

Quegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Opal

Quegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Opal

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Opal

Quegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Opal

Quegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Opal

Siebengebirge, Cologne, North Rhine-Westphalia, Germany
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Opal

Quegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Opal

Quegstein, Wintermühlenhof, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2Oⓘ 'Phillipsite Subgroup'
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Phillipsite Subgroup

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Phillipsite Subgroup

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Phillipsite Subgroup

Weilberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Fe1-xSⓘ Pyrrhotite
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Pyrrhotite

Petersberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Pyrrhotite

Petersberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Pyrrhotite

Petersberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
K(AlSi3O8)ⓘ Sanidine (TL)
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Sanidine

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Sanidine

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Zr(SiO4)ⓘ Zircon
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Zircon

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Drachenfels, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
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Zircon

Ölberg, Königswinter, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘCorundum
var. Chlorosaphir		4.CB.05Al2O3
ⓘ4.CB.05Al2O3
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘTridymite4.DA.10SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘAragonite5.AB.15CaCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘArtinite5.DA.10Mg2(CO3)(OH)2 · 3H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2(SiO4)
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘAndalusite9.AF.10Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘTitanite9.AG.15CaTiO(SiO4)
ⓘCordierite9.CJ.10Mg2Al4Si5O18
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘArfvedsonite9.DE.25NaNa2(Fe2+4Fe3+)Si8O22(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘZeophyllite9.EE.70Ca13Si10O28(OH)2F8 · 6H2O
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘSanidine (TL)9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
ⓘvar. Anorthoclase-Sanidine9.FA.35(Na,K)AlSi3O8
ⓘvar. Anorthoclase9.FA.35(Na,K)AlSi3O8
ⓘHaüyne9.FB.10Na3Ca(Si3Al3)O12(SO4)
ⓘGonnardite9.GA.05(Na,Ca)2(Si,Al)5O10 · 3H2O
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Apophyllite Group'-AB4[Si8O20]X · 8H2O
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chabazite'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Phillipsite Subgroup'-(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Hornblende Root Name Group'-◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Thomsonite Subgroup'-
ⓘ'Apatite'-Ca5(PO4)3A

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Hⓘ ArfvedsoniteNaNa2(Fe42+Fe3+)Si8O22(OH)2
Hⓘ ArtiniteMg2(CO3)(OH)2 · 3H2O
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ OpalSiO2 · nH2O
Hⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Hⓘ ZeophylliteCa13Si10O28(OH)2F8 · 6H2O
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ ArtiniteMg2(CO3)(OH)2 · 3H2O
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ GraphiteC
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AndalusiteAl2(SiO4)O
Oⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ Albite var. Anorthoclase-Sanidine(Na,K)AlSi3O8
Oⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Oⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Oⓘ AragoniteCaCO3
Oⓘ ArfvedsoniteNaNa2(Fe42+Fe3+)Si8O22(OH)2
Oⓘ ArtiniteMg2(CO3)(OH)2 · 3H2O
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ Corundum var. ChlorosaphirAl2O3
Oⓘ CordieriteMg2Al4Si5O18
Oⓘ CorundumAl2O3
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ ForsteriteMg2(SiO4)
Oⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Oⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Oⓘ HematiteFe2O3
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ KyaniteAl2(SiO4)O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ OpalSiO2 · nH2O
Oⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ SanidineK(AlSi3O8)
Oⓘ SideriteFeCO3
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SpinelMgAl2O4
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ TitaniteCaTiO(SiO4)
Oⓘ TridymiteSiO2
Oⓘ ZeophylliteCa13Si10O28(OH)2F8 · 6H2O
Oⓘ ZirconZr(SiO4)
Oⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ ApatiteCa5(PO4)3A
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ ZeophylliteCa13Si10O28(OH)2F8 · 6H2O
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ Albite var. Anorthoclase-Sanidine(Na,K)AlSi3O8
Naⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Naⓘ ArfvedsoniteNaNa2(Fe42+Fe3+)Si8O22(OH)2
Naⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Naⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ ArtiniteMg2(CO3)(OH)2 · 3H2O
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ CordieriteMg2Al4Si5O18
Mgⓘ ForsteriteMg2(SiO4)
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ AndalusiteAl2(SiO4)O
Alⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ Albite var. Anorthoclase-Sanidine(Na,K)AlSi3O8
Alⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Corundum var. ChlorosaphirAl2O3
Alⓘ CordieriteMg2Al4Si5O18
Alⓘ CorundumAl2O3
Alⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Alⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ KyaniteAl2(SiO4)O
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ SanidineK(AlSi3O8)
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpinelMgAl2O4
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Alⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ AndalusiteAl2(SiO4)O
Siⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ Albite var. Anorthoclase-Sanidine(Na,K)AlSi3O8
Siⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Siⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Siⓘ ArfvedsoniteNaNa2(Fe42+Fe3+)Si8O22(OH)2
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ CordieriteMg2Al4Si5O18
Siⓘ ForsteriteMg2(SiO4)
Siⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Siⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ KyaniteAl2(SiO4)O
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ OpalSiO2 · nH2O
Siⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ SanidineK(AlSi3O8)
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ TitaniteCaTiO(SiO4)
Siⓘ TridymiteSiO2
Siⓘ ZeophylliteCa13Si10O28(OH)2F8 · 6H2O
Siⓘ ZirconZr(SiO4)
Siⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
KPotassium
Kⓘ Albite var. Anorthoclase-Sanidine(Na,K)AlSi3O8
Kⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ SanidineK(AlSi3O8)
CaCalcium
Caⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ AragoniteCaCO3
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Caⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Caⓘ TitaniteCaTiO(SiO4)
Caⓘ ZeophylliteCa13Si10O28(OH)2F8 · 6H2O
Caⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3A
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTiO(SiO4)
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ ArfvedsoniteNaNa2(Fe42+Fe3+)Si8O22(OH)2
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
ZnZinc
Znⓘ SphaleriteZnS
ZrZirconium
Zrⓘ ZirconZr(SiO4)
MoMolybdenum
Moⓘ MolybdeniteMoS2
BaBarium
Baⓘ Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
PbLead
Pbⓘ GalenaPbS

Geochronology

Mineralization age: Cenozoic : 27.5 Ma to 18.9 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Neogene
   Miocene
ⓘ Basalt (youngest age)18.9 Ma
ⓘ Sanidine (youngest age)22.9 Ma
  Paleogene
   Oligocene
ⓘ Biotite (youngest age)24.6 Ma
ⓘ Latite (youngest age)25.1 Ma
ⓘ Latite (oldest age)26.2 Ma
ⓘ Sanidine (oldest age)26.4 Ma
ⓘ Biotite (oldest age)26.4 Ma
ⓘ Basalt (oldest age)27.5 Ma

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Siebengebirge
Wikidata ID:Q4236
GeoNames ID:2832708

Localities in this Region

Germany
Germany

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate
EuropeContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Vieten, K. 1980. The minerals of the volcanic rock association of the Siebengebirge. 1. Clinopyroxenes. 2. Variation of chemical composition of Ca-rich clinopyroxenes (salites) in the course of crystallization. Neues Jahrbuch für Mineralogie Abhandlungen, 140, 54-88.
www.mineralienatlas.de (n.d.) https://www.mineralienatlas.de/?l=9216
von Dechen, H. (1861) Geognostischer Führer in das Siebengebirge am Rhein. Henry & Cohen, Bonn, 431 pp. [http://books.google.de/books?id=-dcAAAAAcAAJ&printsec=frontcover&dq=geognostisch&hl=de&ei=18k0TfqNGIvNswb05bihCw&sa=X&oi=book_result&ct=result&resnum=6&ved=0CEAQ6AEwBTgK#v=onepage&q=geognostisch&f=false]
Laspeyres, H. (1900) Das Siebengebirge am Rhein. Verhandlungen des naturhistorischen Vereins der preussischen Rheinlande…, 57, 119-596.
Hofmann, H. (1951) Das Siebengebirge. Der Aufschluss, 2(4), 49-58.
Frechen, J. (1976) Siebengebirge am Rhein, Laacher Vulkangebiet, Maargebiet der Westeifel - Vulkanologisch-petrographische Exkursionen. Bornträger Berlin Stuttgart.
Todt, W., & Lippolt, H. J. (1980). K-Ar age determinations on tertiary volcanic rocks: 5. Siebengebirge, Siebengebirge-Graben. Journal of Geophysics| IF 32.18, 48(1), 18-27.
Stindl, H., & Vieten, K. (1982). The minerals of the volcanic rock association of the Siebengebirge. II. Olivines 1. Idiocrysts and xenocrysts. Neues Jahrbuch für Mineralogie. Abhandlungen, 145(2), 183-199.
Meyer, W. (1983) Geologischer Wanderführer: Eifel. Franckh'sche Verlangshandlung W. Keller & Co., Stuttgart.
Vieten, K. (1983). Tertiary volcanism in the Siebengebirge mountains. In Plateau Uplift (pp. 131-132). Springer, Berlin, Heidelberg.
Moreva-Perekalina, T. V., & Moreva-Perekalina, T. V. (1985). Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany) (Vol. 78). Rijksmuseum van Geologie en Mineralogie. pp. 1-50.
Vieten, K., Hamm, H. M., & Grimeisen, W. (1988). Tertiärer Vulkanismus des Siebengebirges. Fortschritte Mineralogie 66. Beiheft, 2, 1-42.
Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581
Schumacher, R. (2011) Minerale aus dem Siebengebirge im Mineralogischen Museum Bonn. In: Arndt, C.M. & B. Habel (Hrsg.): Von Grubenfeld und Berghoheit. Erzbergbau im Rhein-Sieg-Kreis und seiner Umgebung. Rheinlandia Verlag, Siegburg, 264 pages.
Jung, S., Vieten, K., Romer, R. L., Mezger, K., Hoernes, S., & Satir, M. (2012). Petrogenesis of Tertiary alkaline magmas in the Siebengebirge, Germany. Journal of Petrology, 53(11), 2381-2409.
Kolb, M., Paulick, H., Kirchenbaur, M., & Münker, C. (2012). Petrogenesis of mafic to felsic lavas from the Oligocene Siebengebirge Volcanic Field (Germany): implications for the origin of intracontinental volcanism in Central Europe. Journal of Petrology, 53(11), 2349-2379.
commons.wikimedia.org (2016) http://commons.wikimedia.org/wiki/File:Siebengebirge_%C3%9Cbersichtskarte.png
Habel, B. (2017) Das Siebengebirge am Rhein und seine Mineralien. Lapis, 42(9), 10-21; 62.
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