Epidote Supergroup
A group of related mineral species
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About Epidote Supergroup
Formula:
(A1A2)(M1M2M3)O4[Si2O7][SiO4]O10
A1 = large (variably VIII,IX,X)-coordinated site, usually Ca, less commonly Mn2+; limited vacancies have been reported.
A2 = large (variably IX,X)-coordinated site (larger than A1), usually Ca, but also Y, REE, Sr, Pb; Th (especially) and U may be present; limited vacancies have been reported.
M1 = VI-coordinated site, usually Al, but also sometimes Fe3+ and Mn3+; Cr is reportedly strongly partitioned into M1.
M2 = VI-coordinated site, almost exclusively Al.
M3 = most distorted of the three VI-coordinated sites, most commonly Al, Fe3+ and Mn3+, but also V, Fe2+, Mn2+, Mg, Cr.
O4 = O (F in the dollaseite group).
O10 = OH (O in the åskagenite group)
Be, Ga, Ti, Zn, Cu, P, and other less common substitutions have also been reported.
A2 = large (variably IX,X)-coordinated site (larger than A1), usually Ca, but also Y, REE, Sr, Pb; Th (especially) and U may be present; limited vacancies have been reported.
M1 = VI-coordinated site, usually Al, but also sometimes Fe3+ and Mn3+; Cr is reportedly strongly partitioned into M1.
M2 = VI-coordinated site, almost exclusively Al.
M3 = most distorted of the three VI-coordinated sites, most commonly Al, Fe3+ and Mn3+, but also V, Fe2+, Mn2+, Mg, Cr.
O4 = O (F in the dollaseite group).
O10 = OH (O in the åskagenite group)
Be, Ga, Ti, Zn, Cu, P, and other less common substitutions have also been reported.
Name:
After the principal member of the group.
A supergroup of monoclinic sorosilicates with the general formula given above.
It is following the revision of nomenclature, changes and content published by Armbruster et al. (2006) with the modifications done by IMA (Proposal 09A, Mills et al. 2009). It is thus not identical with the now historical "epidote group", though there are some similiarities.
The nomenclature is based on the occupancy of the five A and M sites.
It is following the revision of nomenclature, changes and content published by Armbruster et al. (2006) with the modifications done by IMA (Proposal 09A, Mills et al. 2009). It is thus not identical with the now historical "epidote group", though there are some similiarities.
The nomenclature is based on the occupancy of the five A and M sites.
Unique Identifiers
Mindat ID:
6662
Long-form identifier:
mindat:1:1:6662:0
IMA Classification of Epidote Supergroup
IMA status notes:
IMA Approved Group Name
Chemistry of Epidote Supergroup
Mindat Formula:
(A1A2)(M1M2M3)O4[Si2O7][SiO4]O10
A1 = large (variably VIII,IX,X)-coordinated site, usually Ca, less commonly Mn2+; limited vacancies have been reported.
A2 = large (variably IX,X)-coordinated site (larger than A1), usually Ca, but also Y, REE, Sr, Pb; Th (especially) and U may be present; limited vacancies have been reported.
M1 = VI-coordinated site, usually Al, but also sometimes Fe3+ and Mn3+; Cr is reportedly strongly partitioned into M1.
M2 = VI-coordinated site, almost exclusively Al.
M3 = most distorted of the three VI-coordinated sites, most commonly Al, Fe3+ and Mn3+, but also V, Fe2+, Mn2+, Mg, Cr.
O4 = O (F in the dollaseite group).
O10 = OH (O in the åskagenite group)
Be, Ga, Ti, Zn, Cu, P, and other less common substitutions have also been reported.
A1 = large (variably VIII,IX,X)-coordinated site, usually Ca, less commonly Mn2+; limited vacancies have been reported.
A2 = large (variably IX,X)-coordinated site (larger than A1), usually Ca, but also Y, REE, Sr, Pb; Th (especially) and U may be present; limited vacancies have been reported.
M1 = VI-coordinated site, usually Al, but also sometimes Fe3+ and Mn3+; Cr is reportedly strongly partitioned into M1.
M2 = VI-coordinated site, almost exclusively Al.
M3 = most distorted of the three VI-coordinated sites, most commonly Al, Fe3+ and Mn3+, but also V, Fe2+, Mn2+, Mg, Cr.
O4 = O (F in the dollaseite group).
O10 = OH (O in the åskagenite group)
Be, Ga, Ti, Zn, Cu, P, and other less common substitutions have also been reported.
Age distribution
Recorded ages:
Paleozoic : 500 Ma to 450 Ma - based on 21 recorded ages.
Sample ages:
Sample references:
Chemical Analysis
Oxide wt%:
Showing 12 of 14 analyses on this page.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiO2 | 37.71 % | 38.13 % | 39.04 % | 37.77 % | 37.43 % | 38.2 % | 28.81 % | 27.15 % | 32.6 % | 32.4 % | 35.69 % | 34.92 % |
| TiO2 | 0.19 % | 0.14 % | 0.17 % | 0.21 % | 0.08 % | 0.03 % | 0.12 % | 0.22 % | 0.44 % | |||
| Al2O3 | 26.14 % | 28.58 % | 28.92 % | 30.2 % | 23.37 % | 24.9 % | 14.39 % | 16.27 % | 12.9 % | 19.0 % | 19.13 % | |
| Cr2O3 | 0.01 % | 0.10 % | 0.09 % | 0.06 % | 0.1 % | |||||||
| FeO | 9.55 % | 5.31 % | 6.27 % | 5.51 % | 1.5 % | 3.56 % | 5.97 % | |||||
| MnO | 0.19 % | 0.02 % | 0.03 % | 0.19 % | 0.1 % | 1.4 % | 1.3 % | 0.14 % | 0.13 % | |||
| MgO | 0.05 % | 0.32 % | 0.17 % | 0.21 % | 0.05 % | 0.3 % | 0.05 % | 0.05 % | 2.2 % | 0.16 % | ||
| CaO | 24.49 % | 24.52 % | 24.29 % | 23.07 % | 22.43 % | 23.2 % | 8.78 % | 8.93 % | 10.6 % | 12.4 % | 19.16 % | 17.66 % |
| Na2O | 0.01 % | 0.01 % | 0.01 % | 0.01 % | 0.5 % | |||||||
| K2O | 0.02 % | 0.02 % | 0.01 % | 0.01 % | ||||||||
| Fe2O3 | 12.71 % | 10.1 % | 1.5 % | 13.4 % | 1.10 % | 1.96 % | ||||||
| SnO2 | 0.8 % | 0.82 % | ||||||||||
| H2O | 1.9 % | 1.6 % | 1.6 % | |||||||||
| Fe2O3* | 14.09 % | 11.42 % | ||||||||||
| Mn2O3* | 1.78 % | 0.19 % | ||||||||||
| MnO* | 0.46 % | |||||||||||
| ZnO | 0.08 % | |||||||||||
| SrO | 4.53 % | 0.14 % | 7.2 % | 7.2 % | ||||||||
| BaO | 0.37 % | 0.22 % | ||||||||||
| PbO | 24.13 % | 32.98 % | 10.9 % | |||||||||
| H2O (by stoichiometry) | 1.44 % | 1.38 % | ||||||||||
| P2O5 | 0.01 % | 0.01 % | ||||||||||
| Ga2O3 | 0.01 % | 0.1 % | ||||||||||
| NiO | 0.01 % | |||||||||||
| ThO2 | 0.2 % | |||||||||||
| La2O3 | 9.2 % | 1.55 % | 2.55 % | |||||||||
| Ce2O3 | 0.2 % | 4.05 % | 7.39 % | |||||||||
| Pr2O3 | 1.5 % | 0.31 % | 0.48 % | |||||||||
| Nd2O3 | 2.6 % | 1.53 % | 0.67 % | |||||||||
| Sm2O3 | 0.1 % | 0.40 % | ||||||||||
| Mn2O3 | 15.0 % | 0.7 % | ||||||||||
| Al2O | 21.98 % | |||||||||||
| Sc2O3 | 6.12 % | 4.79 % | ||||||||||
| V2O3 | 0.07 % | |||||||||||
| Y2O3 | 0.11 % | |||||||||||
| EuO | 0.11 % | |||||||||||
| Gd2O3 | 0.56 % | 0.61 % | ||||||||||
| Eu2O3 | 0.12 % | |||||||||||
| H2O(+) | 1.73 % | |||||||||||
| Total: | 98.36 % | 97.15 % | 98.89 % | 97.06 % | 96.33 % | 101 % | 98.97 % | 98.89 % | 99.5 % | 98.9 % | 96.82 % | 99.37 % |
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | Ca2.09(Al2.40Mn0.01Fe3+0.07Ti0.01 Cr0.01)Σ3.03Si2.94O12(OH) |
| 2 | Ca2.05 (Al2.62Mg0.04Fe0.35Cr0.01Ti0.01)Σ3.03Si2.97) O22OH |
| 3 | Ca2.00 (Al2.62Mg0.02Fe3+0.36Ti0.01)Σ3.01Si3.00 O22OH |
| 13 | Ca2.03 (Al2.82Fe3+0.16)Σ2.98Si3.00O22OH |
| 6 | Ca2(Al2.30Fe3+0.60Fe2+0.05Sn0.05)O(Si2O7)(SiO4)(OH) |
| 7 | (Ca0.96Mn2+0.04)(Pb0.68Sr0.27Ca0.02Ba0.01)[(Al0.76Fe3+0.26)Al1.00(Fe3+0.85Mn3+0.14Mg0.01Zn0.01)]O[Si2.00O7][Si0.99O4](OH) |
| 8 | Ca1.00(Pb0.96Ca0.02Sr0.01Ba0.01)[Al0.98Al1.00(Fe3+0.93Al0.04Mn3+0.02Mg0.01Ti0.01)]O[Si1.94Al0.06O7][Si1.00O4](OH) |
| 14 | (Mn2+0.59Ca0.40Fe2+0.01)(Ce0.50La0.19Nd0.12Gd0.03Dy0.01Er0.04Yb0.04Ca0.02)Σ=0.95(Al0.78Fe3+0.22)Al0.99Fe2+1.00Si3.02O12(OH) |
| 15 | Mn0.51Ca0.26Ce0.39Nd0.23La0.11Pr0.07Sm0.05Y0.04Gd0.02Th0.01Al1.89Fe1.34Mg0.01(Si2O7)(SiO4)O0.85(OH) |
| 16 | A1(Mn2+0.63Ca0.35Ce0.02)A2Σ1.00(Ce0.53La0.27Nd0.14Pr0.05REE*0.01)M1Σ1.00(Fe3+0.41Al0.12V3+0.01Mg0.40Ti0.05)M2Σ0.99AlM31.00(Mn2+0.75Fe2+0.22Mg0.03)T1-3Σ1.00Si3.00O11O4(O0.67F0.33)(OH) |
| 17 | A(1)(Ca0.62Mn2+0.38) A(2)(La0.52Nd0.08Pr0.07Ce0.07Y0.01Ca0.25)M(1)(Mn3+0.52Fe3+0.28Al0.18V3+0.01)M(2)Al1.00 M(3)(Mn2+0.60Mn3+0.27Mg0.13)T(1-3)(Si2.99Al0.01)O12(OH) |
| 18 | A(1)(Ca0.64Mn2+0.36)A(2)(Ce0.37La0.17Nd0.06Pr0.03Ca0.35◻0.02)M(1)(Fe3+0.61Al0.39)M(2) Al1.00 M(3) (Mn2+0.64Mn3+0.33Fe3+0.02Mg0.01) T(1-3) Si3.01O12(OH) |
| 11 | (Ca1.73Ce0.13La0.05Nd0.05Gd0.02Sm0.01Pr0.01Y0.01Eu2+0.003)Σ1.99[(Al2.18Sc0.45Fe3+0.07V3+0.01)Σ2.71(Fe2+0.25Mg0.02Mn0.01)Σ0.28Ti0.01]Σ3.00(Si3.006O11)O(OH)11)O(OH) |
| 12 | (Ca1.64Ce0.24La0.08Nd0.02Gd0.02Pr0.02Eu2+0.004)Σ1.02[(Al1.96Sc0.36Fe3+0.13)E2.45(Fe2+0.43Mn0.01)Σ0.44(Ti0.03Sn4+0.03)Σ0.06]Σ2.95(Si3.03O11)O(OH) |
Sample references:
| ID | Type | Locality | Reference | Notes |
|---|---|---|---|---|
| 1 | iclga | Eissee eclogite, Timmelbach valley, Prägraten am Großvenediger, Lienz District, Tyrol, Austria | EMPA analysis of clinozoisite rim on a zoisite inclusion in garnet from a kyanite-eclogite | |
| 2 | 2519 | Steinsteg eclogite, Frosnitz valley, Matrei in Osttirol, Lienz District, Tyrol, Austria | EMPA analysisi of clinozoisite inclusion in garnet from a kyanite-eclogite | |
| 3 | clinozoiste host | Hohl-Felsen eclogite, Wernersdorf, Wies, Deutschlandsberg District, Styria, Austria | EMPA analysis (University of Vienna) of clinozoisite from eclogite matrix | |
| 4 | Pak12 | Eclogite outcrops, Shang Sumdo région, Leh District, Ladakh, India | EMPA analysis of clinozoisite from an eclogite matrix. | |
| 5 | ES-11 | Weiß‑Spitze eclogites, Virgen valley, Lienz District, Tyrol, Austria | Sample ES‑11 represents a fine‑grained, strongly banded eclogite forming the host rock at the locality. EMPA analysis. | |
| 6 | Tin bearing skarns, Cassiar, Liard Mining Division, British Columbia, Canada | Wet chemical and Optical emission spectrography analysis of a Sn-rich epidote from hand-picked crystal fragments from pyroxene-skarn | ||
| 7 | pt. 31 | Franklin Mine, Franklin, Sussex County, New Jersey, USA | occurs as high-z rims in complexly zoned crystals of (Sr+Pb)-bearing epidote (cores) to Pb-bearing epidote-(Sr) and Sr-bearing hancockite (near rims and rims), intergrown with barite, within massive epidote/hancockite, andradite, and franklinite rock. Hendricksite is also present. Measured by EPMA. *All Fe assumed to be Fe3+; Mn3+ and Mn2+ calculated from charge balance. H2O calculated by stoichiometry. | |
| 8 | pt. 31 (coincidental) | Jakobsberg Mine, Jakobsberg ore field, Nordmark mining district, Filipstad, Värmland County, Sweden | found in a sample labeled "margarosanite", however no margarosanite was found. Scattered rounded to blocky greenish-yellow (in thin section) crystals associated with abundant aegirine-augite and hyalophane/celsian feldspar; the thin section was not fully characterized due to time limitations, and additional minor minerals are present. Analysis by EPMA; *Fe is assumed to be Fe3+ before Mn is charge balanced between Mn3+ and Mn2+. H2O calculated by stoichiometry. | |
| 9 | pt. 23 | Praborna Mine, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italy | EPMA data for zoned composite tweddellite-piemontite grains in Mn-rich schist. analysis spot #23 | |
| 10 | Franklin Mine, Franklin, Sussex County, New Jersey, USA | occurs as high-z near-rim bands in complexly zoned crystals of (Sr+Pb)-bearing epidote (cores) to Sr-bearing hancockite (rims), intergrown with barite, within massive epidote/hancockite, andradite, and franklinite rock. Hendricksite and cpx(?; not analyzed) are also present. | ||
| 11 | Pieczka, Adam, Kristiansen, Roy, Stachowicz, Marcin, Dumańska-Słowik, Magdalena, Gołębiowska, Bożena, Sęk, Mateusz P., Nejbert, Krzysztof, Kotowski, Jakub, Marciniak-Maliszewska, Beata, Szuszkiewicz, Adam, et al. (2024) Heflikite, ideally Ca2(Al2Sc)(Si2O7)(SiO4)O(OH), the first scandium epidote-supergroup mineral from Jordanów Śląski, Lower Silesia, Poland and from Heftetjern, Tørdal, Norway. Mineralogical Magazine, 88 (3). 228-243 doi:10.1180/mgm.2023.98 | holotype; water content is calculated | ||
| 12 | Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway | Pieczka, Adam, Kristiansen, Roy, Stachowicz, Marcin, Dumańska-Słowik, Magdalena, Gołębiowska, Bożena, Sęk, Mateusz P., Nejbert, Krzysztof, Kotowski, Jakub, Marciniak-Maliszewska, Beata, Szuszkiewicz, Adam, et al. (2024) Heflikite, ideally Ca2(Al2Sc)(Si2O7)(SiO4)O(OH), the first scandium epidote-supergroup mineral from Jordanów Śląski, Lower Silesia, Poland and from Heftetjern, Tørdal, Norway. Mineralogical Magazine, 88 (3). 228-243 doi:10.1180/mgm.2023.98 | cotype; water content is calculated | |
| 13 | clinozoiste vein | Hohl-Felsen eclogite, Wernersdorf, Wies, Deutschlandsberg District, Styria, Austria | EMPA analysis (University of Vienna) of clinozoisite from an eclogitc vein. | |
| 14 | Heftetjern | Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway | Analysis by D. Nishio-Hamane 2016. | |
| 15 | Type Specimen | Marutoku Quarry, Shodoshima, Kagawa Prefecture, Japan | The empirical formula calculated on the basis of 3 silicon and 1 hydrogen atoms per formula unit. | |
| 16 | Július manganese occurrence, Betliar, Rožňava District, Košice Region, Slovakia | via EPMA-WDS; empirical formula basis: 13 anions pfu; REE* = minor rare earth elements | ||
| 17 | Type Specimen | Maniglia Mt. Mine, Bellino, Cuneo Province, Piedmont, Italy | ||
| 18 | Type Specimen | " " |
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0020381 | Ferriandrosite-(La) | Nagashima M, Nishio-Hamane D, Tomita N, Minakawa T, Inaba S (2015) Ferriakasakaite-(La) and ferriandrosite-(La): new epidote-supergroup minerals from Ise, Mie Prefecture, Japan Mineralogical Magazine 79 735-753 | 2015 | Shobu area, Ise City, Mie Prefecture, Japan | 0 | 293 | |
| 0020382 | Ferriakasakaite-(La) | Nagashima M, Nishio-Hamane D, Tomita N, Minakawa T, Inaba S (2015) Ferriakasakaite-(La) and ferriandrosite-(La): new epidote-supergroup minerals from Ise, Mie Prefecture, Japan Mineralogical Magazine 79 735-753 | 2015 | Shobu area, Ise City, Mie Prefecture, Japan | 0 | 293 | |
| 0019978 | Vanadoallanite-(La) | Nagashima M, Nishio-Hamane D, Tomita N, Minakawa T, Inaba S (2013) Vanadoallanite-(La): a new epidote-supergroup mineral from Ise, Mie Prefecture, Japan Case 2 Mineralogical Magazine 77 2739-2752 | 2013 | Ise, Mie Prefecture, Japan | 0 | 293 | |
| 0019977 | Vanadoallanite-(La) | Nagashima M, Nishio-Hamane D, Tomita N, Minakawa T, Inaba S (2013) Vanadoallanite-(La): a new epidote-supergroup mineral from Ise, Mie Prefecture, Japan Case 1 Mineralogical Magazine 77 2739-2752 | 2013 | Ise, Mie Prefecture, Japan | 0 | 293 | |
| 0019361 | Ferriallanite-(La) | Kolitsch U, Mills S J, Miyawaki R, Blass G (2012) Ferriallanite-(La), a new member of the epidote supergroup from the Eifel, Germany European Journal of Mineralogy 24 741-747 | 2012 | Eifel, Germany | 0 | 293 | |
| 0018878 | Allanite-(Nd) | Skoda R, Cempirek J, Filip J, Novak M, Veselovsky F, Ctvrtlik R (2012) Allanite-(Nd), CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Askagen, Sweden American Mineralogist 97 983-988 | 2012 | Askagen pegmatite, Varmland, Sweden | 0 | 293 | |
| 0018299 | Piemontite | Nagashima M, Armbruster T, Akasaka M, Minakawa T (2010) Crystal chemistry of Mn2+-, Sr-rich and REE-bearing piemontite from the Kamisugai mine in the Sambagawa metamorphic belt, Shikoku, Japan Journal of Mineralogical and Petrological Sciences 105 142-150 | 2010 | Kamisugai mine, Sambagawa metamorphic belt, Shikoku, Japan | 0 | 293 | |
| 0016954 | Piemontite | Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246 | 2010 | synthetic | 0 | 293 | |
| 0016953 | Piemontite | Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246 | 2010 | synthetic | 0 | 293 | |
| 0016952 | Epidote | Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246 | 2010 | synthetic | 0 | 293 | |
| 0016951 | Epidote | Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246 | 2010 | synthetic | 0 | 293 | |
| 0016950 | Epidote | Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246 | 2010 | synthetic | 0 | 293 | |
| 0016949 | Epidote | Nagashima M, Akasada M (2010) X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis American Mineralogist 95 1237-1246 | 2010 | synthetic | 0 | 293 | |
| 0013136 | Epidote-(Sr) | Minakawa T, Fukushima H, Nishio-Hamane D, Miura H (2008) Epidote-(Sr), CaSrAl2Fe(Si2O7)(SiO4)(OH), a new mineral from the Ananai mine, Kochi Prefecture, Japan Journal of Mineralogical and Petrological Sciences 103 400-406 | 2008 | Ananai mine, Kochi Prefecture, Japan | 0 | 293 | |
| 0007258 | Uedaite-(Ce) | Miyawaki R, Yokoyama K, Matsubara S, Tsutsumi Y, Goto A (2008) Uedaite-(Ce), a new member of the epidote group with Mn at the A site, from Shodoshima, Kagawa Prefecture, Japan European Journal of Mineralogy 20 261-269 | 2008 | Shodoshima Island, Kagawa Prefecture, western Japan | 0 | 293 | |
| 0009130 | Dissakisite-(Ce) | Hoshino M, Kimata M, Nishida N, Shimizu M (2008) Crystal chemical significance of chemical zoning in dissakisite-(Ce) Physics and Chemistry of Minerals 35 59-70 | 2008 | Trimouns dolomite mine, France | 0 | 293 | |
| 0004406 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 |  | 2007 | synthetic | 0 | 293 |
| 0004405 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004404 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004403 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004402 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004401 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004400 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004399 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0004398 | Clinozoisite | Dorsam G, Liebscher A, Franz G, Gottschalk M (2007) Crystal chemistry of synthetic Ca2Al3Si3O12OH - Sr2Al3Si3O12OH solid solution series of zoisite and clinozoisite American Mineralogist 92 1133-1147 | | 2007 | synthetic | 0 | 293 |
| 0007164 | Vanadoandrosite-(Ce) | Cenki-Tok B, Ragu A, Armbruster T, Chopin C, Medenbach O (2006) New Mn- and rare-earth-rich epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce) European Journal of Mineralogy 18 569-582 | 2006 | Vielle Aure mining district, central Pyrenees, France | 0 | 293 | |
| 0007163 | Manganiandrosite-(Ce) | Cenki-Tok B, Ragu A, Armbruster T, Chopin C, Medenbach O (2006) New Mn- and rare-earth-rich epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce) European Journal of Mineralogy 18 569-582 | 2006 | Praborna manganese mine, Saint-Marcel, Aosta valley, Alps, Italy | 0 | 293 | |
| 0006069 | Allanite-(La) | Orlandi P, Pasero M (2006) Allanite-(La) from Buca della Vena mine, Apuan Alps, Italy, an epidote-group mineral The Canadian Mineralogist 44 63-68 | | 2006 | Buca della Vena mine, near Stazzema, Apuan Alps, Tuscany, Italy | 0 | 293 |
| 0014561 | Tweddillite | Armbruster T, Gnos E, Dixon R, Gutzmer J, Hejny C, Dobelin N, Medenbach O (2002) Manganvesuvianite and tweddillite, two new Mn3+-silicate minerals from the Kalahari manganese fields, South Africa Mineralogical Magazine 66 137-150 | | 2002 | Kalahari manganese fields, South Africa | 0 | 293 |
| 0005294 | Dissakisite-(Ce) | Rouse R C, Peacor D R (1993) The crystal structure of dissakisite-(Ce),the Mg analogue of allanite-(Ce) The Canadian Mineralogist 31 153-157 | | 1993 | Balchen Mountain, East Antartica | 0 | 293 |
| 0006437 | Piemontite | Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33 | 1992 | Monte Brugiana, Alpi Apuane, Italy | 0 | 293 | |
| 0006436 | Piemontite | Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33 | 1992 | Monte Brugiana, Alpi Apuane, Italy | 0 | 293 | |
| 0006435 | Piemontite | Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33 | 1992 | Monte Brugiana, Alpi Apuane, Italy | 0 | 293 | |
| 0006434 | Piemontite | Bonazzi P, Garbarino C, Menchetti S (1992) Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy European Journal of Mineralogy 4 23-33 | 1992 | Monte Brugiana, Alpi Apuane, Italy | 0 | 293 | |
| 0004981 | Clinozoisite | Nagashima M, Geiger C A, Akasaka M (2009) A crystal-chemical investigation of clinozoisite synthesized along the join Ca2Al3Si3O12(OH)-Ca2Al2CrSi3O12(OH) American Mineralogist 94 1351-1360 | | 2009 | synthetic | 1.2 | 873 |
| 0004982 | Clinozoisite | Nagashima M, Geiger C A, Akasaka M (2009) A crystal-chemical investigation of clinozoisite synthesized along the join Ca2Al3Si3O12(OH)-Ca2Al2CrSi3O12(OH) American Mineralogist 94 1351-1360 | | 2009 | synthetic | 1.2 | 973 |
| 0004980 | Clinozoisite | Nagashima M, Geiger C A, Akasaka M (2009) A crystal-chemical investigation of clinozoisite synthesized along the join Ca2Al3Si3O12(OH)-Ca2Al2CrSi3O12(OH) American Mineralogist 94 1351-1360 | | 2009 | synthetic | 1.2 | 973 |
| 0004979 | Clinozoisite | Nagashima M, Geiger C A, Akasaka M (2009) A crystal-chemical investigation of clinozoisite synthesized along the join Ca2Al3Si3O12(OH)-Ca2Al2CrSi3O12(OH) American Mineralogist 94 1351-1360 | | 2009 | synthetic | 1.2 | 973 |
| 0003997 | Dissakisite-(La) | Lavina B, Carbonin S, Russo U, Tumiati S (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage American Mineralogist 91 104-110 | | 2006 | 0 | 293 | |
| 0003996 | Dissakisite-(La) | Lavina B, Carbonin S, Russo U, Tumiati S (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage American Mineralogist 91 104-110 | | 2006 | 0 | 293 | |
| 0003995 | Dissakisite-(La) | Lavina B, Carbonin S, Russo U, Tumiati S (2006) The crystal structure of dissakisite-(La) and structural variations after annealing of radiation damage American Mineralogist 91 104-110 | | 2006 | 0 | 293 | |
| 0003596 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003595 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003594 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003593 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003592 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003591 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003590 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003589 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003588 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003587 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0003586 | Piemontite | Nagashima M, Akasaka M (2004) An X-ray Rietveld study of piemontite on the join Ca2Al3Si3O12(OH) - Ca2Mn3+3Si3O12(OH) formed by hydrothermal synthesis American Mineralogist 89 1119-1129 | | 2004 | 0 | 293 | |
| 0005860 | Ferriallanite-(Ce) | Kartashov P M, Ferraris G, Ivaldi G, Sokolova E V, McCammon C A (2003) Ferriallanite-(Ce), CaCeFeAlFe(SiO4)(Si2O7)O(OH), a new member of the epidote group: Description, X-ray and Mossbauer study: Errata The Canadian Mineralogist 41 829-830 | | 2003 | 0 | 293 | |
| 0002248 | Epidote | Giuli G, Bonazzi P, Menchetti S (1999) Al-Fe disorder in synthetic epidotes: A single-crystal X-ray diffraction study American Mineralogist 84 933-936 | | 1999 | 0 | 293 | |
| 0001855 | Clinozoisite | Comodi P, Zanazzi P F (1997) The pressure behavior of clinozoisite and zoisite: An X-ray diffraction study American Mineralogist 82 61-68 | | 1997 | 0 | 293 | |
| 0001797 | Manganiandrosite-(La) | Bonazzi P, Menchetti S, Reinecke T (1996) Solid solution between piemontite and androsite-(La), a new mineral of the epidote group from Andros Island, Greece American Mineralogist 81 735-742 | | 1996 | 0 | 293 | |
| 0001798 | Piemontite | Bonazzi P, Menchetti S, Reinecke T (1996) Solid solution between piemontite and androsite-(La), a new mineral of the epidote group from Andros Island, Greece American Mineralogist 81 735-742 | | 1996 | 0 | 293 | |
| 0001203 | Piemontite | Catti M, Ferraris G, Ivaldi G (1988) Thermal behavior of the crystal structure of strontian piemontite American Mineralogist 73 1370-1376 | | 1988 | 0 | 293 | |
| 0001202 | Piemontite | Catti M, Ferraris G, Ivaldi G (1988) Thermal behavior of the crystal structure of strontian piemontite American Mineralogist 73 1370-1376 | | 1988 | 0 | 293 | |
| 0001187 | Dollaseite-(Ce) | Peacor D R, Dunn P J (1988) Dollaseite-(Ce) (Magnesium orthite redefined): Structure refinement and implications for F + M2+ substitutions in epidote-group minerals American Mineralogist 73 838-842 | | 1988 | 0 | 293 | |
| 0000309 | Epidote | Gabe E J, Portheine J C, Whitlow S H (1973) A reinvestigation of the epidote structure: Confirmation of the iron location sample LEP American Mineralogist 58 218-223 | | 1973 | 0 | 293 | |
| 0000308 | Epidote | Gabe E J, Portheine J C, Whitlow S H (1973) A reinvestigation of the epidote structure: Confirmation of the iron location sample HEP American Mineralogist 58 218-223 | | 1973 | 0 | 293 | |
| 0000228 | Hancockite | Dollase W A (1971) Refinement of the crystal structures of epidote, allanite and hancockite American Mineralogist 56 447-464 | | 1971 | 0 | 293 | |
| 0000229 | Epidote | Dollase W A (1971) Refinement of the crystal structures of epidote, allanite and hancockite American Mineralogist 56 447-464 | | 1971 | 0 | 293 | |
| 0000226 | Epidote | Dollase W A (1971) Refinement of the crystal structures of epidote, allanite and hancockite American Mineralogist 56 447-464 | | 1971 | 0 | 293 | |
| 0000227 | Allanite-(Ce) | Dollase W A (1971) Refinement of the crystal structures of epidote, allanite and hancockite American Mineralogist 56 447-464 | | 1971 | 0 | 293 | |
| 0000191 | Piemontite | Dollase W A (1969) Crystal structure and cation ordering of piemontite American Mineralogist 54 710-717 | | 1969 | 0 | 293 | |
| 0000185 | Clinozoisite | Dollase W A (1968) Refinement and comparison of the structures of zoisite and clinozoisite American Mineralogist 53 1882-1898 | | 1968 | 0 | 293 | |
| 0000041 | Epidote | Ito T (1947) The structure of epidote (HCa2(Al,Fe)Al2Si3O13) American Mineralogist 32 309-321 | | 1947 | 0 | 293 | |
| 0001856 | Clinozoisite | Comodi P, Zanazzi P F (1997) The pressure behavior of clinozoisite and zoisite: An X-ray diffraction study American Mineralogist 82 61-68 | | 1997 | 0.05 | 293 | |
| 0001857 | Clinozoisite | Comodi P, Zanazzi P F (1997) The pressure behavior of clinozoisite and zoisite: An X-ray diffraction study American Mineralogist 82 61-68 | | 1997 | 1.94 | 293 | |
| 0001858 | Clinozoisite | Comodi P, Zanazzi P F (1997) The pressure behavior of clinozoisite and zoisite: An X-ray diffraction study American Mineralogist 82 61-68 | | 1997 | 4.2 | 293 |
CIF Raw Data - click here to close
Relationship of Epidote Supergroup to other Species
Epidote Supergroup Members:
| Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) | |
| Akasakaite-(Ce) | (CaCe)(AlAlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Akasakaite-(La) | (CaLa)(AlAlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(La) | (CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Sm) | (CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Allanite-(Y) | (CaY)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'Androsite-(Ce)' | (Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH) | |
| Dissakisite-(Ce) | (CaCe)(AlAlMg)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Dissakisite-(La) | (CaLa)(AlAlMg)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriakasakaite-(Ce) | (CaCe)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriakasakaite-(La) | (CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriallanite-(La) | (CaLa)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriandrosite-(Ce) | (Mn2+Ce)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Ferriandrosite-(La) | (Mn2+La)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Manganiakasakaite-(La) | (CaLa)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Manganiandrosite-(Ce) | (Mn2+Ce)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Manganiandrosite-(La) | (Mn2+La)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'Oxyallanite' | {CaCe}{Al2Fe3+}(Si2O7)(SiO4)O(O) (?) | |
| Uedaite-(Ce) | (Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'UM1989-32-SiO:AlCaFeHREE' | (Ca0.5◻0.5REE)(AlAlFe3+)O[Si2O7][SiO4](OH) | |
| 'UM1994-25-SiO:AlCaFeHREEV' | (CaREE)(V3+AlFe2+)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Mg-analogue of Ferriallanite-(Ce))' | (CaCe)(Fe3+AlMg)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))' | (CaCe)(Mn3+AlMn2+)O[Si2O7][SiO4](OH) | |
| Vanadoakasakaite-(Ce) | (CaCe)(V3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoakasakaite-(La) | (CaLa)(V3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoallanite-(La) | (CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vanadoandrosite-(Ce) | (Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Vielleaureite-(Ce) | Mn2+Ce(MgAlMn2+)(Si2O7)(SiO4)F(OH) | Mon. 2/m : P21/m |
| Åskagenite Group | (A12+REE3+)(M13+M23+M33+)O[Si2O7][SiO4]O | |
| Åskagenite-(Nd) | (Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]O | Mon. 2/m : P21/m |
| Dollaseite Group | (A12+REE3+)(M12+M23+M32+)F[Si2O7][SiO4](OH) | |
| Dollaseite-(Ce) | (CaCe)(MgAlMg)F[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Khristovite-(Ce) | (CaCe)(MgAlMn2+)F[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Epidote Group | (A12+A22+)(M13+M23+M33+)O[Si2O7][SiO4](OH) | |
| Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Epidote-(Sr) | (CaSr)(AlAlFe3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Hancockite | (CaPb)(AlAlFe3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Heflikite | (CaCa)(AlAlSc)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Mukhinite | (CaCa)(AlAlV3+)O[Si2O7][SiO4](OH) | Mon. |
| Niigataite | (CaSr)(AlAlAl)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Piemontite-(Pb) | (CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Piemontite-(Sr) | (CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| Tweddillite | (CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH) | Mon. 2/m : P21/m |
| 'Unnamed (Fe3+ analogue of Piemontite-(Pb))' | (CaPb)(Fe3+AlMn3+)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Fe3+-analogue of Piemontite)' | (CaCa)(Fe3+AlMn3+)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Fe3+-analogue of Piemontite-(Sr))' | (CaSr)(Fe3+AlMn3+)O[Si2O7][SiO4](OH) | |
| 'Unnamed (Ga-analogue of Epidote)' | (CaCa)(AlAlGa3+)O[Si2O7][SiO4](OH) | |
| 'Unnamed ([Ca-Ce]+[Al-Al-Mn] member of the Epidote Supergroup)' | (CaCe)(AlAlMn2+)O[Si2O7][SiO4](OH) or (CaCe)(AlAlMn3+)O[Si2O7][SiO4]O | |
| 'Unnamed ([Ca-Ce]+[Fe3-Cr-Fe] member of the Epidote Supergroup)' | (CaCe)(Fe3+Cr3+Fe2+)[SiO4][Si2O7]O(OH) or (CaCe)(Fe3+Cr3+Fe3+)[SiO4][Si2O7]OO | |
| 'Unnamed ([Ca-La]+[Al-Al-Mn] member of the Epidote Supergroup)' | (CaLa)(AlAlMn2+)O[Si2O7][SiO4](OH) or (CaLa)(AlAlMn3+)O[Si2O7][SiO4]O | |
| 'Unnamed ([Ca-La]+[Fe3-Al-Mn] member of the Epidote Supergroup)' | (CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH) or (CaLa)(Fe3+AlMn3+)O[Si2O7][SiO4]O | |
| 'Unnamed ([Mn2-Ce]+[Al-Al-Mn] member of the Epidote Supergroup)' | (Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH) or (Mn2+Ce)(AlAlMn3+)O[Si2O7][SiO4]O | |
| 'Unnamed ([Mn2-Nd]+[Al-Al-Mn] member of the Epidote Supergroup)' | (Mn2+Nd)(AlAlMn2+)O[Si2O7][SiO4](OH) or (Mn2+Nd)(AlAlMn3+)O[Si2O7][SiO4]O | |
| Vanadoandrosite-(La) | Mn2+La(V3+AlMn2+)(Si2O7)(SiO4)O(OH) | Mon. 2/m : P21/m |
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.
Minerals structurally related to group:
| 'Schlüterite-(Y)' | (Y,REE)2AlSi2O7(OH)2F |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Epidote Supergroup in petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
Internet Links for Epidote Supergroup
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https://www.mindat.org/min-6662.html
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References for Epidote Supergroup
Reference List:
Dollase, W. A. (1973) Mössbauer spectra and iron distribution in the epidote-group minerals. Zeitschrift für Kristallographie, 138 (1-4). 41-63 doi:10.1524/zkri.1973.138.1-4.41
Peacor, Donald R., Dunn, Pete J. (1988) Dollaseite-(Ce) (magnesium orthite redefined): Structure refinement and implications for F + M2+ substitutions in epidote-group minerals. American Mineralogist, 73 (7-8) 838-842
Gieré, R., Sorensen, S. S. (2004) Allanite and Other REE-Rich Epidote-Group Minerals. In Reviews in Mineralogy and Geochemistry Vol. 56. Mineralogical Society of America. p.431-493. doi:10.2138/gsrmg.56.1.431
Grapes, R. H., Hoskin, P. W. O. (2004) Epidote Group Minerals in Low-Medium Pressure Metamorphic Terranes. In Reviews in Mineralogy and Geochemistry Vol. 56. Mineralogical Society of America. p.301-345. doi:10.2138/gsrmg.56.1.301
Armbruster, Thomas, Bonazzi, Paola, Akasaka, Masahide, Bermanec, Vladimir, Chopin, Christian, Gieré, Reto, Heuss-Assbichler, Soraya, Liebscher, Axel, Menchetti, Silvio, Pan, Yuanming, Pasero, Marco (2006) Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18 (5) 551-567 doi:10.1127/0935-1221/2006/0018-0551
Mills, Stuart J., Hatert, Frédéric, Nickel, Ernest H., Ferraris, Giovanni (2009) The standardisation of mineral group hierarchies: application to recent nomenclature proposals. European Journal of Mineralogy, 21 (5) 1073-1080 doi:10.1127/0935-1221/2009/0021-1994
Significant localities for Epidote Supergroup
Showing 85 significant localities out of 16,468 recorded on mindat.org.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Antarctica | |
| [Dissakisite-(Ce)] Grew et al. (1991) |
Australia | |
| [Allanite-(Ce)] Costas Constantinides collection |
Austria | |
| [Epidote] Niedermayr et al. (1995) |
| [Epidote] Treimer (2001) +7 other references |
| [Allanite-(Ce)] Exel (1993) +1 other reference |
| [Clinozoisite] Weinschenk (1896) +1 other reference |
Belgium | |
| [Epidote] Stöber (1895) +2 other references |
Canada | |
| [Allanite-(Ce)] Johnston |
| [Allanite-(Ce)] Lafontaine (1979) +1 other reference |
Ecuador | |
| [Epidote] Alejandro Felix Gutierrez |
France | |
| [Epidote] Haüy (1801a) +1 other reference |
| [Allanite Group, Allanite-(Ce)] Gatel (1990) +1 other reference |
| [Vanadoandrosite-(Ce), Vielleaureite-(Ce)] Cenki-Tok et al. (2006) +1 other reference |
| [Epidote] Piccoli (2002) +1 other reference |
| [Epidote] Serge Lavarde Collection |
| [Epidote] Serge Lavarde Collection | |
Germany | |
| [Allanite Group] Breithaupt A. (1826) | |
| [Ferriallanite-(La)] Williams et al. (2011) +1 other reference |
Greece | |
| [Manganiandrosite-(La)] Bonazzi et al. (1996) |
Greenland | |
| [Allanite-(Ce)] Petersen et al. (2005) |
Guatemala | |
| [Epidote] USGS Bulletin 1034 |
Italy | |
| [Manganiandrosite-(Ce), Piemontite] Das Mohs'sche Mineralsystem +1 other reference |
| [Piemontite-(Sr)] Bonazzi et al. (1990) +1 other reference |
| [Piemontite-(Sr)] Bonazzi et al. (1990) | |
| [Ferriakasakaite-(Ce), Manganiakasakaite-(La)] doi.org (n.d.) +2 other references |
| [Epidote] Borson (1811) +15 other references |
| [Epidote] Alpinisti M. (1981) +1 other reference |
| [Dissakisite-(La)] Am Min 90:1177-1185 |
| [Allanite-(Ce)] Dellantonio (2013) |
| [Allanite-(Ce)] Orlandi P. et al. (LU) |
| [Piemontite] Battaglia S. et al. (1977) |
| [Allanite-(La)] Orlandi et al. (2006) |
| [Piemontite] Biagioni C. (Alpi Apuane, Lucca) | |
| [Piemontite] Biagioni C. (Alpi Apuane, Lucca) | |
Japan | |
| [Akasakaite-(Ce), Akasakaite-(La), Vanadoakasakaite-(Ce), Vanadoakasakaite-(La), Vanadoandrosite-(La)] Nagashima et al. (2024) +1 other reference |
| [Uedaite-(Ce)] European J. Mineralogy 20 (2008) |
| [Epidote-(Sr)] Minakawa et al. (2008) |
| [Ferriakasakaite-(La), Ferriandrosite-(La), Vanadoallanite-(La)] Williams et al. (2013) +2 other references |
| [Niigataite] Miyajima et al. (2003) |
Kyrgyzstan | |
| [Khristovite-(Ce)] Pautov et al. (1993) +1 other reference |
Mexico | |
| [Epidote] Peninsular Range Collection - Curtis ... |
| [Allanite-(Ce)] Cortez et al. (1981) +1 other reference |
| [Clinozoisite] Panczner (1987) |
Mongolia | |
| [Ferriallanite-(Ce)] Kartashov et al. (2002) |
North Macedonia | |
| [Piemontite-(Pb)] Bermanec et al. (1994) +3 other references |
| [Epidote] Bermanec et al. (2001) +1 other reference |
Norway | |
| [Heflikite] Pieczka et al. (2024) +1 other reference |
Pakistan | |
| [Epidote] Weerth (1991) |
Poland | |
| [Allanite-(Sm), Heflikite] Bosi et al. (2023) +1 other reference |
Portugal | |
| [Epidote] |
Russia | |
| [Ferriallanite-(Ce)] Pavel M. Kartashov analytical data (1999) |
| [Mukhinite] Pekov (1998) |
Slovakia | |
| [Ferriandrosite-(Ce)] Bosi et al. (2023) +2 other references |
South Africa | |
| [Epidote] PMPB Meulenbeld collection Photo ID: ... |
| [Tweddillite] Weiß (2002) +1 other reference |
Spain | |
| [Allanite-(Ce)] Calvo et al. (2014) |
Sweden | |
| [Piemontite] Holtstam et al. (1993) |
| [Allanite-(Nd), Allanite-(Y), Åskagenite-(Nd)] Pavel M. Kartashov (n.d.) +3 other references |
| [Dollaseite-(Ce)] Peacor et al. (1988) +2 other references |
UK | |
| [Epidote var: Withamite] C. Hintze: "Handbuch der Mineralogie" (1897) +2 other references |
USA | |
| [Epidote] Mason (1976) +1 other reference |
| [Epidote] Jake Harper: Field work |
| [Epidote] Betts (1999) |
| [Allanite-(Ce)] Zodac (1940) +3 other references |
| [Epidote] Davis (1901) +2 other references |
| [Epidote] Harvard Mineralogical Museum No. 119199 +1 other reference |
| [Epidote] Benham et al. (1985) |
| [Ferriakasakaite-(La), Hancockite] Palache (1935) +2 other references |
| [Hancockite] Penfield et al. (1899) +1 other reference | |
| [Clinozoisite] Lapham et al. (1965) |
| [Clinozoisite] Chidester et al. (1978) |
Alchuri, Shigar Valley, Shigar District, Gilgit-Baltistan, Pakistan