Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
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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Gierswiese (Gerstwiese), Bad Honnef, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germanyi
Regional Level Types
Gierswiese (Gerstwiese)Outcrop
Bad HonnefTown
Rhein-Sieg-KreisDistrict
CologneAdministrative District
North Rhine-WestphaliaState
GermanyCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
50° 39' 1'' North , 7° 14' 19'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Bad Honnef25,348 (2016)1.1km
Rheinbreitbach4,598 (2011)3.8km
Königswinter41,164 (2015)5.2km
Bruchhausen929 (2011)5.7km
Unkel4,938 (2015)6.2km
Mindat Locality ID:
214727
Long-form identifier:
mindat:1:2:214727:0
GUID (UUID V4):
0
Name(s) in local language(s):
Gierswiese (Gerstwiese), Königswinter, Siebengebirge, Nordrhein-Westfalen, Deutschland


A very small outcrop of basalt in a valley E of Bad Honnef. The name is not longer present on modern maps.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


9 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Apophyllite Group'
Formula: AB4[Si8O22]X · 8H2O
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
'Chabazite'
Forsterite
Formula: Mg2SiO4
Hematite
Formula: Fe2O3
Magnetite
Formula: Fe2+Fe3+2O4
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
'Phillipsite Subgroup'
Formula: (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Sphalerite
Formula: ZnS
'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
'Thomsonite Subgroup'
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Pyrrhotite2.CC.10Fe1-xS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Group 9 - Silicates
Forsterite9.AC.05Mg2SiO4
Zircon9.AD.30Zr(SiO4)
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Unclassified
'Apophyllite Group'-AB4[Si8O22]X · 8H2O
'Chabazite'-
'Phillipsite Subgroup'-(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
'Thomsonite Subgroup'-

List of minerals for each chemical element

HHydrogen
H Apophyllite GroupAB4[Si8O22]X · 8H2O
H NatroliteNa2Al2Si3O10 · 2H2O
H Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
H Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
OOxygen
O Apophyllite GroupAB4[Si8O22]X · 8H2O
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ForsteriteMg2SiO4
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O NatroliteNa2Al2Si3O10 · 2H2O
O Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
O Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
O ZirconZr(SiO4)
NaSodium
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg ForsteriteMg2SiO4
AlAluminium
Al NatroliteNa2Al2Si3O10 · 2H2O
Al Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Al Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Si Apophyllite GroupAB4[Si8O22]X · 8H2O
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si ForsteriteMg2SiO4
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Si Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Si ZirconZr(SiO4)
SSulfur
S PyriteFeS2
S PyrrhotiteFe1-xS
S SphaleriteZnS
KPotassium
K Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
ZnZinc
Zn SphaleriteZnS
ZrZirconium
Zr ZirconZr(SiO4)
BaBarium
Ba Phillipsite Subgroup(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Germany
  • North Rhine-Westphalia

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.

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