Clinoferrosilite (original) (raw)

A valid IMA mineral species - grandfathered

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About ClinoferrosiliteHide

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Colour:

Brown, colourless, green

Specific Gravity:

4.068 (Calculated)

Crystal System:

Monoclinic

Name:

Named for being the monoclinic polymorph of ferrosilite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:1073:9

74596705-1367-4b97-94c7-170f1c2457ac

Classification of ClinoferrosiliteHide

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Clinoferrosilite and its relation to other pyroxenes

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Previous petrological nomenclature of clinopyroxenes from basaltic magmas, note described here as 'ferrosilite' (after Poldervaart & Hess, 1951)

IMA Classification of ClinoferrosiliteHide

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Approved, 'Grandfathered' (first described prior to 1959)

9.DA.10

9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family

65.1.1.2

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2

14.21.4

14 : Silicates not Containing Aluminum
21 : Silicates of Fe and Mg

Mineral SymbolsHide

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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.

Symbol Source Reference
Cfs IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Cfs Kretz (1983) Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
Cfs Siivolam & 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
Cfs Whitney & 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

Pronunciation of ClinoferrosiliteHide

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Pronunciation:

Play Recorded by Country
Sorry, your browser doesn't support HTML5 audio. Jolyon Ralph United Kingdom

Physical Properties of ClinoferrosiliteHide

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Transparency:

Transparent, Translucent

Colour:

Brown, colourless, green

Density:

4.068 g/cm3 (Calculated)

Optical Data of ClinoferrosiliteHide

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RI values:

_n_α = 1.764 _n_β = 1.767 _n_γ = 1.792

2V:

Measured: 25° , Calculated: 40°

δ = 0.028

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Optical Extinction:

Z ∧ c = 31°.

Chemistry of ClinoferrosiliteHide

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Mindat Formula:

Fe2+2Si2O6

Simplified: FeSiO3.

Crystallography of ClinoferrosiliteHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 9.7085 Å, b = 9.0872 Å, c = 5.2284 Å
β = 108.432°

Ratio:

a:b:c = 1.068 : 1 : 0.575

Unit Cell V:

437.60 ų (Calculated from Unit Cell)

Comment:

Synthetic sample (pure Fe2Si2O6). Mg-bearing sample has 9.53, 9.21, 5.15 Å, 107.63°.

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0000459 Clinoferrosilite Ohashi Y, Burnham C W, Finger L W (1975) The effect of Ca-Fe substitution on the clinopyroxene crystal structure Fs80Wo20 American Mineralogist 60 423-434 1975 0 293
0000460 Clinoferrosilite Ohashi Y, Burnham C W, Finger L W (1975) The effect of Ca-Fe substitution on the clinopyroxene crystal structure Fs85Wo15 American Mineralogist 60 423-434 1975 0 293
0000936 Clinoferrosilite Sueno S, Kimata M, Prewitt C T (1984) The crystal structure of high clinoferrosilicate American Mineralogist 69 264-269 1984 0 1323
0001679 Clinoferrosilite Hugh-Jones D A, Woodland A B, Angel R J (1994) The structure of high-pressure C2/c ferrosilite and crystal chemistry of high-pressure C2/c pyroxenes American Mineralogist 79 1032-1041 1994 0 293
0001680 Clinoferrosilite Hugh-Jones D A, Woodland A B, Angel R J (1994) The structure of high-pressure C2/c ferrosilite and crystal chemistry of high-pressure C2/c pyroxenes American Mineralogist 79 1032-1041 1994 1.87 293
0001681 Clinoferrosilite Hugh-Jones D A, Woodland A B, Angel R J (1994) The structure of high-pressure C2/c ferrosilite and crystal chemistry of high-pressure C2/c pyroxenes American Mineralogist 79 1032-1041 1994 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
3.035 Å (100)
2.603 Å (63)
2.909 Å (55)
2.408 Å (53)
2.161 Å (51)
4.605 Å (49)
3.234 Å (40)

Geological EnvironmentHide

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Type Occurrence of ClinoferrosiliteHide

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General Appearance of Type Material:

Needles about 0.05 x 0.005 mm in size.

Place of Conservation of Type Material:

National Museum of Natural History, Washington, D.C., USA, number 102793.

Geological Setting of Type Material:

Other Language Names for ClinoferrosiliteHide

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Relationship of Clinoferrosilite to other SpeciesHide

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Other Members of this group:

Aegirine NaFe3+Si2O6 Mon. 2/m : _B_2/b
Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 Mon. 2/m : _B_2/b
Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _B_2/b
Burnettite CaVAlSiO6 Mon. 2/m : _B_2/b
Clinoenstatite MgSiO3 Mon. 2/m : _P_21/b
Colomeraite NaTi3+Si2O6 Mon. 2/m : _B_2/b
Davisite CaScAlSiO6 Mon. 2/m : _B_2/b
Diopside CaMgSi2O6 Mon. 2/m : _B_2/b
Esseneite CaFe3+[AlSiO6] Mon. 2/m : _B_2/b
Grossmanite CaTi3+ AlSiO6 Mon. 2/m : _B_2/b
Hedenbergite CaFe2+Si2O6 Mon. 2/m : _B_2/b
Jadeite Na(Al,Fe3+)Si2O6 Mon. 2/m : _B_2/b
Jervisite NaSc3+Si2O6 Mon. 2/m : _B_2/b
Johannsenite CaMn2+Si2O6 Mon. 2/m : _B_2/b
Kanoite Mn2+(Mg,Mn2+)Si2O6 Mon. 2/m : _P_21/b
Kosmochlor NaCrSi2O6 Mon. 2/m : _B_2/b
Kushiroite CaAl[AlSiO6] Mon. 2/m : _B_2/b
Namansilite NaMn3+Si2O6 Mon. 2/m : _B_2/b
Natalyite NaV3+Si2O6 Mon. 2/m : _B_2/b
Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 Mon. 2/m
Petedunnite Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 Mon. 2/m : _B_2/b
Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _P_21/b
Ryabchikovite CuMgSi2O6 Mon. 2/m : _P_21/b
Spodumene LiAlSi2O6 Mon. 2/m : _B_2/b
Tissintite (Ca,Na,◻)AlSi2O6 Mon. 2/m : _B_2/b
UM2001-19-SiO:AlCaMgNa (Na,Mg,Ca)(Mg,Al)Si2O6 Mon. 2/m : _B_2/b
UM2003-36-SiO:CaNa NaCrSi2O6 - CaMgSi2O6 Mon. 2/m : _B_2/b

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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9.DA. Protoenstatite Mg2Si2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n
9.DA. Ryabchikovite CuMgSi2O6 Mon. 2/m : _P_21/b
9.DA. Colomeraite NaTi3+Si2O6 Mon. 2/m : _B_2/b
9.DA.05 Donpeacorite (Mn,Mg)MgSi2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
9.DA.05 Enstatite Mg2Si2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
9.DA.05 Ferrosilite Fe2+2Si2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
9.DA.10 Clinoenstatite MgSiO3 Mon. 2/m : _P_21/b
9.DA.10 Kanoite Mn2+(Mg,Mn2+)Si2O6 Mon. 2/m : _P_21/b
9.DA.10 Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _P_21/b
9.DA.15 Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _B_2/b
9.DA.15 Diopside CaMgSi2O6 Mon. 2/m : _B_2/b
9.DA.15 Esseneite CaFe3+[AlSiO6] Mon. 2/m : _B_2/b
9.DA.15 Hedenbergite CaFe2+Si2O6 Mon. 2/m : _B_2/b
9.DA.15 va Jeffersonite Ca(Mn,Zn,Fe)Si2O6
9.DA.15 Johannsenite CaMn2+Si2O6 Mon. 2/m : _B_2/b
9.DA.15 Petedunnite Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 Mon. 2/m : _B_2/b
9.DA.15 Davisite CaScAlSiO6 Mon. 2/m : _B_2/b
9.DA.15 Kushiroite CaAl[AlSiO6] Mon. 2/m : _B_2/b
9.DA.15 Grossmanite CaTi3+ AlSiO6 Mon. 2/m : _B_2/b
9.DA.20 Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 Mon. 2/m : _B_2/b
9.DA.20 Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 Mon. 2/m
9.DA.25 Aegirine NaFe3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Jadeite Na(Al,Fe3+)Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Jervisite NaSc3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Kosmochlor NaCrSi2O6 Mon. 2/m : _B_2/b
9.DA.25 Namansilite NaMn3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Natalyite NaV3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Tissintite (Ca,Na,◻)AlSi2O6 Mon. 2/m : _B_2/b
9.DA.30 Spodumene LiAlSi2O6 Mon. 2/m : _B_2/b
9.DA.35 Hiroseite FeSiO3 Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a

Other InformationHide

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Health Risks:

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

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References for ClinoferrosiliteHide

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Localities for ClinoferrosiliteHide

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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.

Locality ListHide

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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Australia
New South Wales Yancowinna Co. Broken Hill district ⓘ Broken Hill Birch (1999)
Brazil
Minas Gerais ⓘ Perdões Jour. of South American Earth Sci. ...
China
Henan Pingdingshan Lushan County ⓘ Yaochang Fe deposit Dongyang Zhang et al. (2010)
Finland
North Savo Rautalampi ⓘ Kiviniemi Kallio et al. (2021) +1 other reference
Germany
North Rhine-Westphalia Arnsberg Märkischer Kreis Iserlohn Letmathe Helmke quarry nature reserve ⓘ Genna zinc smelter slag locality Blaß et al. (1995)
Rhineland-Palatinate Mayen-Koblenz Vordereifel ⓘ Bellerberg volcano Blaß et al. (2003)
Ettringen ⓘ Caspar quarry Blaß et al. (2003)
India
Jharkhand Dumka District ⓘ Dumka Gem mine Bhattacharjee et al. (2012)
Italy
Sardinia South Sardinia Province ⓘ Sant'Antioco Marzio Mamberti find & collection
Japan
Okayama Prefecture Takahashi City Bitchū Shitouyouze ⓘ Sampo mine Matsueda (1980)
Kenya
Kajiado County ⓘ Lake Naivasha Bowen N L (1935)
ⓘ Mount Suswa (Suswa Volcano) Rocky Mountain (53rd)
Mongolia
Dornogovi Province Erdene District ⓘ Khamaryn– Khural–Khiid combustion metamorphic complex Savina et al. (2020)
Töv Province Choir-Nyalga basin Nyalga Combustion Metamorphic complex ⓘ Camel Peretyazhko et al. (2018)
ⓘ Tugrug quarry Peretyazhko et al. (2017)
Russia
Chelyabinsk Oblast Kaslinsky District Kasli ⓘ Mauk deposit Safina et al. (2015)
Korkinsky District ⓘ Korkino Sharygin et al. (2010)
Murmansk Oblast Kolsky District ⓘ Tepsi ultrabasic body Barkov et al. (2024)
ⓘ Sakha [World of Stones 12:49]
South Africa
Free State Fezile Dabi District Municipality Ngwathe Local Municipality ⓘ Beta Farm Cairncross et al. (1995)
North West Bojanala Platinum District Municipality ⓘ Merensky Reef Excalibur Minerals photo ID 140072
Dr Kenneth Kaunda District Municipality JB Marks Local Municipality Potchefstroom ⓘ Mooi River alluvials Fosso-Kankeu et al. (2015, November)
Tajikistan
Sughd Zeravshan Range Yagnob River Ravat village ⓘ Kukhi-Malik area (Kuhi-malik) Sharygin et al. (2009)
USA
California Inyo County Coso Hot Springs ⓘ Coso Hot Springs deposit ...
Sugarloaf Mountain ⓘ Unnamed lava flow [1] Bowen (1935) +2 other references
ⓘ Unspecified Clinoferrosilite occurrence [1] Bowen (1935) +2 other references
Wyoming Campbell County Reno Junction ⓘ Durham Ranch paralava occurrence Gunnar Färber - Mineralienliste 3-2017.
Park County ⓘ Obsidian Cliff (TL) Amer.J.Sci. (1935)