Chemistry of ProtoenstatiteCrystallography of ProtoenstatitePlace of Conservation of Type Material:Type material is deposited in the mineralogical collections of the Geology Museum, Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53706, USA, catalogue numbers UWGM 3538 and UWGM 3539Empirical Formula of Type Material:(Mg1.17Fe0.43Al0.26Ca0.03Na0.10Ti0.01)Σ2.00(Si1.83Al0.17)Σ2.00O6Reference:Synonyms of ProtoenstatiteOther Language Names for ProtoenstatiteRelationship of Protoenstatite to other SpeciesOther Members of Orthopyroxene Subgroup:Donpeacorite (Mn,Mg)MgSi2O6 Orth.mmm(2/m2/m2/m) :Pbca Enstatite Mg2Si2O6 Orth.mmm(2/m2/m2/m) :Pbca Ferrosilite Fe2+2Si2O6 Orth.mmm(2/m2/m2/m) :Pbca
Related Minerals -Strunz-mindat GroupingMon. 2/m :B2/b9.DA. Ryabchikovite CuMgSi2O6 9.DA.05 Donpeacorite (Mn,Mg)MgSi2O6 9.DA.05 Enstatite Mg2Si2O6 9.DA.05 Ferrosilite Fe2+2Si2O6 9.DA.10 Clinoenstatite MgSiO3 9.DA.10 Clinoferrosilite Fe2+2Si2O6 9.DA.10 Kanoite Mn2+(Mg,Mn2+)Si2O6 9.DA.10 Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 9.DA.15 Grossmanite CaTi3+ AlSiO6 9.DA.15 Diopside CaMgSi2O6 9.DA.15 va Jeffersonite Ca(Mn,Zn,Fe)Si2O6 9.DA.15 Hedenbergite CaFe2+Si2O6 9.DA.15 Johannsenite CaMn2+Si2O6 9.DA.15 Petedunnite CaZnSi2O6 9.DA.15 Esseneite CaFe3+[AlSiO6] 9.DA.15 Kushiroite CaAlAlSiO6 9.DA.15 Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 9.DA.15 Davisite CaScAlSiO6 9.DA.20 Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 9.DA.20 Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 9.DA.25 Jadeite Na(Al,Fe3+)Si2O6 9.DA.25 Namansilite NaMn3+Si2O6 9.DA.25 Natalyite NaV3+Si2O6 9.DA.25 Aegirine NaFe3+Si2O6 9.DA.25 Jervisite NaSc3+Si2O6 9.DA.25 Tissintite (Ca,◻)AlSi2O6 9.DA.25 Kosmochlor NaCrSi2O6 9.DA.30 Spodumene LiAlSi2O6 9.DA.35 Hiroseite FeSiO3 Other InformationSearch Engines:Look for Protoenstatite on Google Look for Protoenstatite images on Google Look for Protoenstatite on Bing Look for Protoenstatite images on Bing Look for Protoenstatite on DuckDuckGo Look for Protoenstatite images on DuckDuckGo Look for Protoenstatite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ProtoenstatiteⓘDust Devil Mine (TL)Hålenius et al. (2017)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPronunciationChemistryCrystallographyCrystal StructureX-Ray Powder DiffractionGeological EnvironmentType OccurrenceSynonymsOther LanguagesRelationshipsStrunz-MindatOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 04:16:33 Page updated: November 12, 2025 04:06:25
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Geology Museum, Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53706, USA, catalogue numbers UWGM 3538 and UWGM 3539
Empirical Formula of Type Material:
(Mg1.17Fe0.43Al0.26Ca0.03Na0.10Ti0.01)Σ2.00(Si1.83Al0.17)Σ2.00O6
Reference:
Synonyms of ProtoenstatiteOther Language Names for ProtoenstatiteRelationship of Protoenstatite to other SpeciesOther Members of Orthopyroxene Subgroup:Donpeacorite (Mn,Mg)MgSi2O6 Orth.mmm(2/m2/m2/m) :Pbca Enstatite Mg2Si2O6 Orth.mmm(2/m2/m2/m) :Pbca Ferrosilite Fe2+2Si2O6 Orth.mmm(2/m2/m2/m) :Pbca
Related Minerals -Strunz-mindat GroupingMon. 2/m :B2/b9.DA. Ryabchikovite CuMgSi2O6 9.DA.05 Donpeacorite (Mn,Mg)MgSi2O6 9.DA.05 Enstatite Mg2Si2O6 9.DA.05 Ferrosilite Fe2+2Si2O6 9.DA.10 Clinoenstatite MgSiO3 9.DA.10 Clinoferrosilite Fe2+2Si2O6 9.DA.10 Kanoite Mn2+(Mg,Mn2+)Si2O6 9.DA.10 Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 9.DA.15 Grossmanite CaTi3+ AlSiO6 9.DA.15 Diopside CaMgSi2O6 9.DA.15 va Jeffersonite Ca(Mn,Zn,Fe)Si2O6 9.DA.15 Hedenbergite CaFe2+Si2O6 9.DA.15 Johannsenite CaMn2+Si2O6 9.DA.15 Petedunnite CaZnSi2O6 9.DA.15 Esseneite CaFe3+[AlSiO6] 9.DA.15 Kushiroite CaAlAlSiO6 9.DA.15 Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 9.DA.15 Davisite CaScAlSiO6 9.DA.20 Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 9.DA.20 Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 9.DA.25 Jadeite Na(Al,Fe3+)Si2O6 9.DA.25 Namansilite NaMn3+Si2O6 9.DA.25 Natalyite NaV3+Si2O6 9.DA.25 Aegirine NaFe3+Si2O6 9.DA.25 Jervisite NaSc3+Si2O6 9.DA.25 Tissintite (Ca,◻)AlSi2O6 9.DA.25 Kosmochlor NaCrSi2O6 9.DA.30 Spodumene LiAlSi2O6 9.DA.35 Hiroseite FeSiO3 Other InformationSearch Engines:Look for Protoenstatite on Google Look for Protoenstatite images on Google Look for Protoenstatite on Bing Look for Protoenstatite images on Bing Look for Protoenstatite on DuckDuckGo Look for Protoenstatite images on DuckDuckGo Look for Protoenstatite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ProtoenstatiteⓘDust Devil Mine (TL)Hålenius et al. (2017)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPronunciationChemistryCrystallographyCrystal StructureX-Ray Powder DiffractionGeological EnvironmentType OccurrenceSynonymsOther LanguagesRelationshipsStrunz-MindatOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 04:16:33 Page updated: November 12, 2025 04:06:25
Relationship of Protoenstatite to other SpeciesOther Members of Orthopyroxene Subgroup:Donpeacorite (Mn,Mg)MgSi2O6 Orth.mmm(2/m2/m2/m) :Pbca Enstatite Mg2Si2O6 Orth.mmm(2/m2/m2/m) :Pbca Ferrosilite Fe2+2Si2O6 Orth.mmm(2/m2/m2/m) :Pbca
Related Minerals -Strunz-mindat GroupingMon. 2/m :B2/b9.DA. Ryabchikovite CuMgSi2O6 9.DA.05 Donpeacorite (Mn,Mg)MgSi2O6 9.DA.05 Enstatite Mg2Si2O6 9.DA.05 Ferrosilite Fe2+2Si2O6 9.DA.10 Clinoenstatite MgSiO3 9.DA.10 Clinoferrosilite Fe2+2Si2O6 9.DA.10 Kanoite Mn2+(Mg,Mn2+)Si2O6 9.DA.10 Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 9.DA.15 Grossmanite CaTi3+ AlSiO6 9.DA.15 Diopside CaMgSi2O6 9.DA.15 va Jeffersonite Ca(Mn,Zn,Fe)Si2O6 9.DA.15 Hedenbergite CaFe2+Si2O6 9.DA.15 Johannsenite CaMn2+Si2O6 9.DA.15 Petedunnite CaZnSi2O6 9.DA.15 Esseneite CaFe3+[AlSiO6] 9.DA.15 Kushiroite CaAlAlSiO6 9.DA.15 Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 9.DA.15 Davisite CaScAlSiO6 9.DA.20 Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 9.DA.20 Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 9.DA.25 Jadeite Na(Al,Fe3+)Si2O6 9.DA.25 Namansilite NaMn3+Si2O6 9.DA.25 Natalyite NaV3+Si2O6 9.DA.25 Aegirine NaFe3+Si2O6 9.DA.25 Jervisite NaSc3+Si2O6 9.DA.25 Tissintite (Ca,◻)AlSi2O6 9.DA.25 Kosmochlor NaCrSi2O6 9.DA.30 Spodumene LiAlSi2O6 9.DA.35 Hiroseite FeSiO3 Other InformationSearch Engines:Look for Protoenstatite on Google Look for Protoenstatite images on Google Look for Protoenstatite on Bing Look for Protoenstatite images on Bing Look for Protoenstatite on DuckDuckGo Look for Protoenstatite images on DuckDuckGo Look for Protoenstatite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ProtoenstatiteⓘDust Devil Mine (TL)Hålenius et al. (2017)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPronunciationChemistryCrystallographyCrystal StructureX-Ray Powder DiffractionGeological EnvironmentType OccurrenceSynonymsOther LanguagesRelationshipsStrunz-MindatOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 04:16:33 Page updated: November 12, 2025 04:06:25
| Donpeacorite | (Mn,Mg)MgSi2O6 | Orth.mmm(2/m2/m2/m) :Pbca |
| Enstatite | Mg2Si2O6 | Orth.mmm(2/m2/m2/m) :Pbca |
| Ferrosilite | Fe2+2Si2O6 | Orth.mmm(2/m2/m2/m) :Pbca |
Other InformationSearch Engines:Look for Protoenstatite on Google Look for Protoenstatite images on Google Look for Protoenstatite on Bing Look for Protoenstatite images on Bing Look for Protoenstatite on DuckDuckGo Look for Protoenstatite images on DuckDuckGo Look for Protoenstatite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ProtoenstatiteⓘDust Devil Mine (TL)Hålenius et al. (2017)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPronunciationChemistryCrystallographyCrystal StructureX-Ray Powder DiffractionGeological EnvironmentType OccurrenceSynonymsOther LanguagesRelationshipsStrunz-MindatOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 04:16:33 Page updated: November 12, 2025 04:06:25
External Links:
Mineral Dealers:
Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPronunciationChemistryCrystallographyCrystal StructureX-Ray Powder DiffractionGeological EnvironmentType OccurrenceSynonymsOther LanguagesRelationshipsStrunz-MindatOther InformationInternet LinksReferencesLocalitiesLocality List
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 04:16:33 Page updated: November 12, 2025 04:06:25
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 04:16:33 Page updated: November 12, 2025 04:06:25