Orthopyroxene Subgroup: Mineral information, data and localities.
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Orthopyroxene Subgroup

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About Orthopyroxene SubgroupHide

Member of:
A subgroup name for orthorhombic Pyroxene Group minerals.
Compare Clinopyroxene Subgroup.

The most common member in rocks is enstatite.


Unique IdentifiersHide

Mindat ID:
10967
Long-form identifier:
mindat:1:1:10967:1
GUID
(UUID V4):
e7ab19ec-462b-48f9-95b8-64a65121413c

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
OpxIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
OpxKretz (1983)Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
OpxSiivolam & Schmid (2007)Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
OpxWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371

Chemical AnalysisHide

Oxide wt%:
 1
SiO253.39 %
Al2O35.44 %
Fe2O31.51 %
FeO8.41 %
MnO0.12 %
MgO30.86 %
TiO20.10 %
Na2O0.06 %
H2O+0.30 %
H2O-0.04 %
Total:100.23 %
Sample references:
IDLocalityReferenceNotes
1Ianakafy, Ianakafy, Betroka District, Anosy, Madagascarvon Knorring, O., Sahama, Th.G., and Lehtinen, M. (1969) Kornerupine-bearing gneiss from Inanakafy near Betroka, Madagascar. Bulletin of the Geological Society of Finland: 41: 79-84.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000937DonpeacoritePetersen E U, Anovitz L M, Essene E J (1984) Donpeacorite, (Mn,Mg)MgSi2O6, a new orthopyroxene and its proposed phase relations in the system MnSiO3-MgSiO3-FeSiO3 American Mineralogist 69 472-48019840293
0003667DonpeacoriteStimpfl M (2005) The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene American Mineralogist 90 155-16120050293
0003668DonpeacoriteStimpfl M (2005) The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene American Mineralogist 90 155-16120050293
0003669DonpeacoriteStimpfl M (2005) The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene American Mineralogist 90 155-16120050293
0003670DonpeacoriteStimpfl M (2005) The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene American Mineralogist 90 155-16120050293
0003671DonpeacoriteStimpfl M (2005) The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene American Mineralogist 90 155-16120050293
0003672DonpeacoriteStimpfl M (2005) The Mn, Mg-intracrystalline exchange reaction in donpeacorite (Mn0.54Ca0.03Mg1.43Si2O6) and its relation to the fractionation behavior of Mn in Fe, Mg-orthopyroxene American Mineralogist 90 155-16120050293
0001201EnstatiteCarlson W D, Swinnea J S, Miser D E (1988) Stability of orthoenstatite at high temperature and low pressure American Mineralogist 73 1255-126319880293
0001244EnstatiteAngel R J, Gasparik T, Finger L W (1989) Crystal structure of a Cr-bearing pyroxene American Mineralogist 74 599-60319890293
0001644EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019940293
0001645EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019941.04293
0001646EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019941.95293
0001647EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019943.27293
0001648EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019944.09293
0001649EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019944.95293
0001650EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019945.85293
0001651EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019947293
0001652EnstatiteHugh-Jones D A, Angel R J (1994) A compressional study of MgSiO3 orthoenstatite up to 8.5 GPa American Mineralogist 79 405-41019948.1293
0001693EnstatiteYang H, Ghose S (1995) A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich orthopyroxene, (Mg0.75Fe0.25)2Si2O6 American Mineralogist 80 9-2019950293
0001694EnstatiteYang H, Ghose S (1995) A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich orthopyroxene, (Mg0.75Fe0.25)2Si2O6 American Mineralogist 80 9-20199501000
0001695EnstatiteYang H, Ghose S (1995) A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich orthopyroxene, (Mg0.75Fe0.25)2Si2O6 American Mineralogist 80 9-20199501100
0001696EnstatiteYang H, Ghose S (1995) A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich orthopyroxene, (Mg0.75Fe0.25)2Si2O6 American Mineralogist 80 9-20199501200
0001697EnstatiteYang H, Ghose S (1995) A transitional structural state and anomalous Fe-Mg order-disorder in Mg-rich orthopyroxene, (Mg0.75Fe0.25)2Si2O6 American Mineralogist 80 9-20199501300
0001755EnstatiteDomeneghetti M C, Molin G M, Stimpfl M, Tribaudino M (1995) Orthopyroxene from the Serra de Mage meteorite: Structure refinement and estimation of C2/c pyroxene contributions to apparent Pbca diffraction violations American Mineralogist 80 923-92919950293
0001756EnstatiteDomeneghetti M C, Molin G M, Stimpfl M, Tribaudino M (1995) Orthopyroxene from the Serra de Mage meteorite: Structure refinement and estimation of C2/c pyroxene contributions to apparent Pbca diffraction violations American Mineralogist 80 923-92919950293
0004153EnstatiteNestola F, Gatta G D, Ballaran T B (2006) The effect of Ca substitution on the elastic and structural behavior of orthoenstatite American Mineralogist 91 809-8152006synthetic sample0.0001293
0004154EnstatiteNestola F, Gatta G D, Ballaran T B (2006) The effect of Ca substitution on the elastic and structural behavior of orthoenstatite American Mineralogist 91 809-8152006synthetic sample1.76293
0004155EnstatiteNestola F, Gatta G D, Ballaran T B (2006) The effect of Ca substitution on the elastic and structural behavior of orthoenstatite American Mineralogist 91 809-8152006synthetic sample3.36293
0004156EnstatiteNestola F, Gatta G D, Ballaran T B (2006) The effect of Ca substitution on the elastic and structural behavior of orthoenstatite American Mineralogist 91 809-8152006synthetic sample3.94293
0004157EnstatiteNestola F, Gatta G D, Ballaran T B (2006) The effect of Ca substitution on the elastic and structural behavior of orthoenstatite American Mineralogist 91 809-8152006synthetic sample6.25293
0004362EnstatiteSmyth J R, Mierdel K, Keppler H, Langenhorst F, Dubrovinsky L, Nestola F (2007) Crystal chemistry of hydration in aluminous orthopyroxene American Mineralogist 92 973-9762007synthetic0293
0019068EnstatiteZhang J S, Dera P, Bass J D (2012) A new high-pressure phase transition in natural Fe-bearing orthoenstatite American Mineralogist 97 1070-10742012San Carlos, Arizona, USA12.66293
0019069EnstatiteZhang J S, Dera P, Bass J D (2012) A new high-pressure phase transition in natural Fe-bearing orthoenstatite American Mineralogist 97 1070-10742012San Carlos, Arizona, USA14.26293
0020252EnstatiteJacob D, Palatinus L, Cuvillier P, Leroux H, Domeneghetti C, Camara F (2013) Ordering state in orthopyroxene as determined by precession electron diffraction American Mineralogist 98 1526-15342013Wilson Terrane, North Victoria Land, Antarctica0293
0020253EnstatiteJacob D, Palatinus L, Cuvillier P, Leroux H, Domeneghetti C, Camara F (2013) Ordering state in orthopyroxene as determined by precession electron diffraction American Mineralogist 98 1526-15342013Wilson Terrane, North Victoria Land, Antarctica0293
0020254EnstatiteJacob D, Palatinus L, Cuvillier P, Leroux H, Domeneghetti C, Camara F (2013) Ordering state in orthopyroxene as determined by precession electron diffraction American Mineralogist 98 1526-15342013Wilson Terrane, North Victoria Land, Antarctica0293
0020255EnstatiteJacob D, Palatinus L, Cuvillier P, Leroux H, Domeneghetti C, Camara F (2013) Ordering state in orthopyroxene as determined by precession electron diffraction American Mineralogist 98 1526-15342013Wilson Terrane, North Victoria Land, Antarctica0293
0005139EnstatiteHawthorne F C, Ito J (1977) Synthesis and crystal-structure refinement of transition-metal orthopyroxenes I: Orthoenstatite and (Mg, Mn, Co) orthopyroxene The Canadian Mineralogist 15 321-33819770293
0005140EnstatiteHawthorne F C, Ito J (1977) Synthesis and crystal-structure refinement of transition-metal orthopyroxenes I: Orthoenstatite and (Mg, Mn, Co) orthopyroxene The Canadian Mineralogist 15 321-33819770293
0006054EnstatiteTribaudino M, Nestola F, Meneghini C (2005) Rietveld refinement of clinopyroxenes with intermediate Ca-content along the join diopside-enstatite The Canadian Mineralogist 43 1411-14212005synthetic0293
0006055EnstatiteTribaudino M, Nestola F, Meneghini C (2005) Rietveld refinement of clinopyroxenes with intermediate Ca-content along the join diopside-enstatite The Canadian Mineralogist 43 1411-14212005synthetic0293
0006929EnstatiteTribaudino M, Nestola F (2002) Average and local structure in P2_1/c clinopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6) European Journal of Mineralogy 14 549-55520020293
0006930EnstatiteTribaudino M, Nestola F (2002) Average and local structure in P2_1/c clinopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6) European Journal of Mineralogy 14 549-55520020293
0006931EnstatiteTribaudino M, Nestola F (2002) Average and local structure in P2_1/c clinopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6) European Journal of Mineralogy 14 549-55520020293
0006932EnstatiteTribaudino M, Nestola F (2002) Average and local structure in P2_1/c clinopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6) European Journal of Mineralogy 14 549-55520020293
0006978EnstatiteNestola F, Tribaudino M (2003) The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6) European Journal of Mineralogy 15 365-37120030293
0006979EnstatiteNestola F, Tribaudino M (2003) The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6) European Journal of Mineralogy 15 365-37120030293
0007358EnstatiteOhashi Y (1984) Polysynthetically-twinned structures of enstatite and wollastonite Physics and Chemistry of Minerals 10 217-22919840293
0007919EnstatiteYang H, Ghose S (1995) High temperature single crystal X-ray diffraction studies of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K Physics and Chemistry of Minerals 22 300-31019950293
0007920EnstatiteYang H, Ghose S (1995) High temperature single crystal X-ray diffraction studies of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K Physics and Chemistry of Minerals 22 300-31019950293
0007921EnstatiteYang H, Ghose S (1995) High temperature single crystal X-ray diffraction studies of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K Physics and Chemistry of Minerals 22 300-31019950293
0007922EnstatiteYang H, Ghose S (1995) High temperature single crystal X-ray diffraction studies of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K Physics and Chemistry of Minerals 22 300-31019950293
0008009EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019970293
0008010EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019971.54293
0008011EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019972.5293
0008012EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019973.17293
0008013EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019974.14293
0008014EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019974.76293
0008015EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019975.77293
0008016EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019976.59293
0008017EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019977.5293
0008018EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019970293
0008019EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019971.04293
0008020EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019971.9293
0008021EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019973293
0008022EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019974.03293
0008023EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019974.93293
0008024EnstatiteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019976.01293
0009041EnstatiteCamara F, Iezzi G, Tiepolo M, Oberti R (2006) The crstal chemistry of lithium and Fe3+ in synthetic orthopyroxene Physics and Chemistry of Minerals 33 475-48320060293
0009042EnstatiteCamara F, Iezzi G, Tiepolo M, Oberti R (2006) The crstal chemistry of lithium and Fe3+ in synthetic orthopyroxene Physics and Chemistry of Minerals 33 475-48320060293
0009043EnstatiteCamara F, Iezzi G, Tiepolo M, Oberti R (2006) The crstal chemistry of lithium and Fe3+ in synthetic orthopyroxene Physics and Chemistry of Minerals 33 475-48320060293
0009057EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009058EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009059EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009060EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009061EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009062EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009063EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009064EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009065EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009066EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009067EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0009068EnstatiteGatta G D, Rinaldi R, Knight K S, Molin G, Artioli G (2007) High temperature structural and thermoelastic behaviour of mantle orthopyroxene: an in situ neutron powder diffraction study Physics and Chemistry of Minerals 34 185-20020070293
0018104EnstatiteWarren B, Modell D (1930) The structure of enstatite, MgSiO3 Zeitschrift fur Kristallographie 75 1-1419300293
0010680EnstatiteMorimoto N, Koto K (1969) The crystal structure of orthoenstatite Zeitschrift fur Kristallographie 129 65-831969Bishopville meteorite0293
0014680EnstatiteAngel R J, Chopelas A, Ross N L (1992) Stability of high-density clinoenstatite at upper-mantle pressures Nature 358 322-32419927.93293
0017925EnstatiteTakane K (1932) Crystal Structure of Bronzite from Chichi-jiama in the Bonin Islands _cod_database_code 1011018 Proceedings of the Japan Academy 8 308-31119320293
0000247FerrosiliteBurnham C W, Ohashi Y, Hafner S S, Virgo D (1971) Cation distribution and atomic thermal vibrations in an iron-rich orthopyroxene American Mineralogist 56 850-87619710293
0000362FerrosiliteSmyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-64819730293
0000363FerrosiliteSmyth J R (1973) An orthopyroxene structure up to 850 C note temperature factors for O1b appear incorrect American Mineralogist 58 636-64819730448
0000364FerrosiliteSmyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-64819730553
0000365FerrosiliteSmyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-64819730773
0000366FerrosiliteSmyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-64819730973
0000367FerrosiliteSmyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-648197301123
0000487FerrosiliteSueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-5319760297
0000488FerrosiliteSueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-5319760673
0000489FerrosiliteSueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-5319760873
0000490FerrosiliteSueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53197601073
0000491FerrosiliteSueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53197601173
0000492FerrosiliteSueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53197601253
0019860FerrosiliteAbdu Y A, Hawthorne F C (2013) Local structure in C2/c clinopyroxenes on the hedenbergite (CaFeSi2O6)- ferrosilite (Fe2Si2O6) join: A new interpretation for the Mossbauer spectra of Ca-rich C2/c clinopyroxenes and implications for pyroxene exsolution Note split-M2-O2-O3 model American Mineralogist 98 1227-12342013synthetic0293
0008004FerrosiliteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019970293
0008005FerrosiliteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019970.83293
0008006FerrosiliteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019971.71293
0008007FerrosiliteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019972.84293
0008008FerrosiliteHugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-31019973.65293
0019764FerrosiliteWeber H P (1983) Ferrosilite III, the high-temperature polymorph of FeSiO3 Acta Crystallographica C39 1-31983synthetic at 2 GPa and 1523 K for 20 h0293
0004955ProtoenstatiteJahn S, Martonak R (2009) Phase behavior of protoenstatite at high pressure studied by atomistic simulations American Mineralogist 94 950-9562009theoretical structure0293
0007923ProtoenstatiteYang H, Ghose S (1995) High temperature single crystal X-ray diffraction studies of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K Physics and Chemistry of Minerals 22 300-31019950293
0007924ProtoenstatiteYang H, Ghose S (1995) High temperature single crystal X-ray diffraction studies of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K Physics and Chemistry of Minerals 22 300-31019950293
CIF Raw Data - click here to close

Synonyms of Orthopyroxene SubgroupHide

Other Language Names for Orthopyroxene SubgroupHide

Simplified Chinese:斜方辉石

Relationship of Orthopyroxene Subgroup to other SpeciesHide

Member of:
Other Members of this group:
Clinopyroxene SubgroupA subgroup name for monoclinic Pyroxene Group minerals.
LeucaugiteCaMgSi2O6Mon.
Group Members:
Donpeacorite (Mn,Mg)MgSi2O6Orth. mmm (2/m 2/m 2/m) : Pbca
Enstatite Mg2Si2O6Orth. mmm (2/m 2/m 2/m) : Pbca
Ferrosilite Fe2+2Si2O6Orth. mmm (2/m 2/m 2/m) : Pbca
Protoenstatite Mg2Si2O6Orth. mmm (2/m 2/m 2/m) : Pbcn

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Orthopyroxene Subgroup in petrologyHide

References for Orthopyroxene SubgroupHide

Reference List:

Localities for Orthopyroxene SubgroupHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

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