Quick Links : The Mindat Manual The Rock H. Currier Digital Library Mindat Newsletter [Free Download]

Home Page About Mindat The Mindat Manual History of Mindat Copyright Status Who We Are Contact Us Advertise on Mindat

Donate to Mindat Corporate Sponsorship Sponsor a Page Sponsored Pages Mindat Advertisers Advertise on Mindat

Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time Explore Fossils

Minerals by Properties Minerals by Chemistry Mineral Visual Explorer Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz Time Machine

Photo Search Photo Galleries Search by Color Photo Colour Explorer New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Ferrosilite

A valid IMA mineral species - grandfathered

This page is currently not sponsored. Click here to sponsor this page.

Photos of Ferrosilite (18)Discuss Ferrosilite

Ferrosilite Gallery Search Photos of Ferrosilite

Edit Ferrosilite Add Synonym Edit CIF structures Clear Cache

Ferrosilite, etc.

Rollinsons quarry, Malmsbury, Macedon Ranges Shire, Victoria, Australia

Ferrosilite, etc.

Tounkinskaya valley, Slyudyanka, Slyudyansky District, Irkutsk Oblast, Russia

Ferrosilite

Genna zinc smelter slag locality, Helmke quarry nature reserve, Letmathe, Iserlohn, Märkischer Kreis, Arnsberg, North Rhine-Westphalia, Germany

Ferrosilite, etc.

Rollinsons quarry, Malmsbury, Macedon Ranges Shire, Victoria, Australia

Ferrosilite, etc.

Tounkinskaya valley, Slyudyanka, Slyudyansky District, Irkutsk Oblast, Russia

Ferrosilite

Genna zinc smelter slag locality, Helmke quarry nature reserve, Letmathe, Iserlohn, Märkischer Kreis, Arnsberg, North Rhine-Westphalia, Germany

Ferrosilite, etc.

Rollinsons quarry, Malmsbury, Macedon Ranges Shire, Victoria, Australia

Ferrosilite, etc.

Tounkinskaya valley, Slyudyanka, Slyudyansky District, Irkutsk Oblast, Russia

Hide all sections | Show all sections

About FerrosiliteHide

Formula:

Fe²⁺₂Si₂O₆

Simplified: FeSiO₃.

Colour:

Dark brown to black.

Lustre:

Vitreous, Sub-Vitreous

Hardness:

5 - 6

Specific Gravity:

3.60 - 4.00

Crystal System:

Orthorhombic

Member of:

Orthopyroxene Subgroup > Pyroxene Group

Name:

Originally a hypothetical mineral named by Henry Stevens Washington [1867-1934] in 1903. First used to name natural material in 1935 by Norman L. Bowen.

Polymorph of:

Clinoferrosilite, Hemleyite, Hiroseite, Pyroxferroite, Roedderite

Enstatite-Ferrosilite Series

Note: The name has been used in the past to describe the monoclinic dimorph clinoferrosilite, with the orthorhombic dimorph having the name orthoferrosilite so be careful when reading older texts.

Unique IdentifiersHide

Mindat ID:

1528

Long-form identifier:

mindat:1:1:1528:4

Similar NamesHide

Ferrosalit	A synonym of 'Ferrosalite'
Ferroselite	A valid IMA mineral species - grandfathered	FeSe₂

Classification of FerrosiliteHide

Previous petrological nomenclature of clinopyroxenes from basaltic magmas. Note this is not the current usage of the name! (after Poldervaart & Hess, 1951)

IMA Classification of FerrosiliteHide

IMA status:

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

Strunz-mindat (2026):

9.DA.05

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

Dana 8th ed.:

65.1.2.2

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

Hey's CIM Ref.:

14.19.2

14 : Silicates not Containing Aluminum
19 : Silicates of Fe

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.

Symbol	Source	Reference for Standard
Fs	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Fs	Kretz (1983)	Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
Fs	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
Fs	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
Fsl	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Pronunciation of FerrosiliteHide

Pronunciation:

Play	Recorded by	Country
	Jolyon Ralph	United Kingdom

Physical Properties of FerrosiliteHide

Lustre:

Vitreous, Sub-Vitreous

Transparency:

Transparent, Translucent

Colour:

Dark brown to black.

Comment:

Bright-green ferrosilite has not been chemically verified, althought it has been verified by XRD as an orthopyroxene.

Streak:

Pale gray brown

Hardness:

5 - 6 on Mohs scale

Tenacity:

Brittle

Cleavage:

Very Good
{210}

Parting:

{100}, {010}

Fracture:

Irregular/Uneven, Splintery

Density:

3.60 - 4.00 g/cm³ (Measured) 4.00 g/cm³ (Calculated)

Optical Data of FerrosiliteHide

Type:

Biaxial (+)

RI values:

n_α = 1.71 - 1.767 n_β = 1.723 - 1.77 n_γ = 1.726 - 1.788

Birefringence:

0.016-0.021

Max. Birefringence:

δ = 0.016 - 0.021
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

Moderate

Dispersion:

r > v moderate

Optical Extinction:

Parallel

Pleochroism:

Weak

Comments:

X pinkish brown, Z greenish brown

Chemistry of FerrosiliteHide

Mindat Formula:

Fe²⁺₂Si₂O₆

Simplified: FeSiO₃.

Element Weights:

Element	% weight
Fe	42.330 %
O	36.382 %
Si	21.288 %

Calculated from ideal end-member formula.

Elements listed:

Fe, O, Si - search for minerals with similar chemistry

Common Impurities:

Ca,Na,K,Al,Co,Ni,Mn,Ti,Cr

Crystallography of FerrosiliteHide

Crystal System:

Orthorhombic

Class (H-M):

mmm(2/m2/m2/m) - Dipyramidal

Space Group:

Pbca

Cell Parameters:

a = 18.43 Å, b = 9.08 Å, c = 5.23 Å

Ratio:

a:b:c = 2.03 : 1 : 0.576

Unit Cell V:

875.21 Å³ (Calculated from Unit Cell)

Morphology:

Usually in elongated grains; rare crystals are bladed to prismatic.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

Rotation
Stop | Start

Labels
Console Off | On | Grey | Yellow

Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Pressure (GPa)	Temp (K)
0019860	Ferrosilite	Abdu 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 1227-1234	2013	synthetic	0	293
0019764	Ferrosilite	Weber H P (1983) Ferrosilite III, the high-temperature polymorph of FeSiO3 Acta Crystallographica C39 1-3	1983	synthetic at 2 GPa and 1523 K for 20 h	0	293
0000487	Ferrosilite	Sueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53	1976		0	297
0008004	Ferrosilite	Hugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-310	1997		0	293
0000362	Ferrosilite	Smyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-648	1973		0	293
0000247	Ferrosilite	Burnham C W, Ohashi Y, Hafner S S, Virgo D (1971) Cation distribution and atomic thermal vibrations in an iron-rich orthopyroxene American Mineralogist 56 850-876	1971		0	293
0000363	Ferrosilite	Smyth J R (1973) An orthopyroxene structure up to 850 C note temperature factors for O1b appear incorrect American Mineralogist 58 636-648	1973		0	448
0000364	Ferrosilite	Smyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-648	1973		0	553
0000488	Ferrosilite	Sueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53	1976		0	673
0000365	Ferrosilite	Smyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-648	1973		0	773
0000489	Ferrosilite	Sueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53	1976		0	873
0000366	Ferrosilite	Smyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-648	1973		0	973
0000490	Ferrosilite	Sueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53	1976		0	1073
0000367	Ferrosilite	Smyth J R (1973) An orthopyroxene structure up to 850 C American Mineralogist 58 636-648	1973		0	1123
0000491	Ferrosilite	Sueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53	1976		0	1173
0000492	Ferrosilite	Sueno S, Cameron M, Prewitt C T (1976) Orthoferrosilite: High-temperature crystal chemistry American Mineralogist 61 38-53	1976		0	1253
0008005	Ferrosilite	Hugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-310	1997		0.83	293
0008006	Ferrosilite	Hugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-310	1997		1.71	293
0008007	Ferrosilite	Hugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-310	1997		2.84	293
0008008	Ferrosilite	Hugh-Jones D A, Chopelas A, Angel R J (1997) Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Physics and Chemistry of Minerals 24 301-310	1997		3.65	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Ferrosilite'
loop_
_publ_author_name
'Abdu Y A'
'Hawthorne F C'
_journal_name_full 'American Mineralogist'
_journal_volume 98 
_journal_year 2013
_journal_page_first 1227
_journal_page_last 1234
_publ_section_title
;
 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
 Sample: Hd50Fs50
;
_database_code_amcsd 0019860
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Fe1.5 Ca.5 Si2 O6'
_cell_length_a 9.793
_cell_length_b 9.078
_cell_length_c 5.238
_cell_angle_alpha 90
_cell_angle_beta 106.27
_cell_angle_gamma 90
_cell_volume 447.014
_exptl_crystal_density_diffrn      3.804
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
FeM1   0.00000   0.90516   0.25000   1.00000   0.00920
FeM2   0.00000   0.29760   0.25000   0.50000   0.01250
CaM2*   0.00000   0.26300   0.25000   0.50000   0.01250
SiT   0.29328   0.08959   0.24272   1.00000   0.00871
O1   0.12169   0.08959   0.15350   1.00000   0.01030
O2*   0.36060   0.24630   0.32000   0.50000   0.01060
O2**   0.38060   0.23720   0.37300   0.50000   0.01060
O3*   0.35200   0.01360   0.00420   0.50000   0.00820
O3**   0.35110   0.03940  -0.01150   0.50000   0.00820

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
6.45 Å	(30)
4.61 Å	(90)
3.23 Å	(70)
3.00 Å	(80)
2.91 Å	(100)
2.59 Å	(40)
2.52 Å	(30)
1.781 Å	(20)

Comments:

21-0721 (synthetic); 31-0635 (magnesian ferrosilite)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4a: Earth’s earliest continental crust	>4.4-3.0
19 : Granitic intrusive rocks
20 : Acidic volcanic rocks
High-? alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 5: Initiation of plate tectonics	<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere	<0.6
50 : Coal and/or oil shale minerals	<0.36
Stage 10b: Anthropogenic minerals	<10 Ka
54 : Coal and other mine fire minerals (see also #51 and #56)

Synonyms of FerrosiliteHide

Low-calcium pyroxene (in part)

Other Language Names for FerrosiliteHide

Dutch:Ferrosiliet

German:Ferrosilit
Eisenhypersthen
Eulit
Eulysit
O-ferrosilit

Japanese:鉄珪輝石

Russian:Ферросилит

Simplified Chinese:铁辉石
低铁透辉石

Spanish:Ferrosilita

Relationship of Ferrosilite to other SpeciesHide

Member of:

Orthopyroxene Subgroup > Pyroxene Group

Other Members of Orthopyroxene Subgroup:

Donpeacorite	Mn²⁺MgSi₂O₆	Orth. mmm(2/m2/m2/m) : Pbca
Enstatite	Mg₂Si₂O₆	Orth. mmm(2/m2/m2/m) : Pbca
Protoenstatite	Mg₂Si₂O₆	Orth. mmm(2/m2/m2/m) : Pbcn

Forms a series with:

Enstatite

Enstatite-Ferrosilite Series

Common AssociatesHide

Associations Based on Photo Data:

9 photos of Ferrosilite associated with Roedderite	K(◻Na)Mg₂Mg₃[Si₁₂O₃₀]
7 photos of Ferrosilite associated with Almandine	Fe²⁺₃Al₂(SiO₄)₃
6 photos of Ferrosilite associated with Ilmenite	Fe²⁺TiO₃
6 photos of Ferrosilite associated with Fayalite	Fe²⁺₂(SiO₄)
4 photos of Ferrosilite associated with Quartz	SiO₂
3 photos of Ferrosilite associated with 'Anorthoclase'	(Na,K)AlSi₃O₈
2 photos of Ferrosilite associated with 'L6 chondrite meteorite'
2 photos of Ferrosilite associated with Wollastonite	Ca₃(Si₃O₉)
2 photos of Ferrosilite associated with Magnetite	Fe²⁺Fe³⁺₂O₄
2 photos of Ferrosilite associated with Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

Related Minerals - Strunz-mindat Grouping Hide

9.DA.	Colomeraite	NaTi³⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.	Protoenstatite	Mg₂Si₂O₆	Orth. mmm(2/m2/m2/m) : Pbcn
9.DA.	Ryabchikovite	CuMgSi₂O₆	Mon. 2/m : P2₁/b
9.DA.05	Donpeacorite	Mn²⁺MgSi₂O₆	Orth. mmm(2/m2/m2/m) : Pbca
9.DA.05	Enstatite	Mg₂Si₂O₆	Orth. mmm(2/m2/m2/m) : Pbca
9.DA.10	Clinoenstatite	MgSiO₃	Mon. 2/m : P2₁/b
9.DA.10	Clinoferrosilite	Fe²⁺₂Si₂O₆	Mon. 2/m : P2₁/b
9.DA.10	Kanoite	Mn²⁺MgSi₂O₆	Mon. 2/m : P2₁/b
9.DA.10	Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆	Mon. 2/m : P2₁/b
9.DA.15	Grossmanite	CaTi³⁺ AlSiO₆	Mon. 2/m : B2/b
9.DA.15	Diopside	CaMgSi₂O₆	Mon. 2/m : B2/b
9.DA.15 va	'Jeffersonite'	Ca(Mn,Zn,Fe)Si₂O₆
9.DA.15	Hedenbergite	CaFe²⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.15	Johannsenite	CaMn²⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.15	Petedunnite	CaZnSi₂O₆	Mon. 2/m : B2/b
9.DA.15	Esseneite	CaFe³⁺[AlSiO₆]	Mon. 2/m : B2/b
9.DA.15	Kushiroite	CaAlAlSiO₆	Mon. 2/m : B2/b
9.DA.15	Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆	Mon. 2/m : B2/b
9.DA.15	Davisite	CaScAlSiO₆	Mon. 2/m : B2/b
9.DA.20	Aegirine-augite	(Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆	Mon. 2/m : B2/b
9.DA.20	Omphacite	(Na_aCa_bFe²⁺_cMg_d)(Al_eFe³⁺_fFe²⁺_gMg_h)Si₂O₆	Mon. 2/m
9.DA.25	Jadeite	Na(Al,Fe³⁺)Si₂O₆	Mon. 2/m : B2/b
9.DA.25	Namansilite	NaMn³⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.25	Natalyite	NaV³⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.25	Aegirine	NaFe³⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.25	Jervisite	NaSc³⁺Si₂O₆	Mon. 2/m : B2/b
9.DA.25	Tissintite	(Ca,◻)AlSi₂O₆	Mon. 2/m : B2/b
9.DA.25	Kosmochlor	NaCrSi₂O₆	Mon. 2/m : B2/b
9.DA.30	Spodumene	LiAlSi₂O₆	Mon. 2/m : B2/b
9.DA.35	Hiroseite	FeSiO₃	Orth. mmm(2/m2/m2/m) : Pnma

Fluorescence of FerrosiliteHide

In UV light:

Not fluorescent

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.

Ferrosilite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Meteorite and other extra-terrestrial rock and sediment
- Meteorite
  - Differentiated achondrite meteorite
    - Martian achrondite meteorite
      - Shergottite meteorite
        Basaltic shergottite meteorite
        Olivine-phyric shergottite meteorite

Internet Links for FerrosiliteHide

mindat.org URL:

https://www.mindat.org/min-1528.html
Please feel free to link to this page.

Search Engines:

Look for Ferrosilite on Google

Look for Ferrosilite images on Google

Look for Ferrosilite on Bing

Look for Ferrosilite images on Bing

Look for Ferrosilite on DuckDuckGo

Look for Ferrosilite images on DuckDuckGo

Look for Ferrosilite in the Rock H. Currier Digital Library

External Links:

Look for Ferrosilite on Webmineral

Look for Ferrosilite on Wikipedia

Look for Ferrosilite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for FerrosiliteHide

Reference List:

Washington, H.S. (1903) Prof. Paper U.S. Geol. Survey, n° 14, 90.

Washington, H.S. (1932) Min. Petr. Mitt. (Tschermak), vol. 43, 63 [M.A. 5-222].

Bowen, N.L. (1935), Ferrosilite as a natural mineral: American Journal of Science, 5th. Series: 30: 481

Henry, N. F. M. (1935) Some data on the iron-rich hypersthenes. Mineralogical Magazine and Journal of the Mineralogical Society, 24 (151) 221-226 doi:10.1180/minmag.1935.024.151.04

Poldervaart, A., Hess, H. H. (1951) Pyroxenes in the Crystallization of Basaltic Magma. The Journal of Geology, 59 (5) 472-489 doi:10.1086/625891

Kuno, Hisashi (1954) Study of orthopyroxenes from volcanic rocks. American Mineralogist, 39 (1-2) 30-46

Annersten, Hans, Olesch, Martin, Seifert, Friedrich A. (1978) Ferric iron in orthopyroxene: a Mössbauer spectroscopic study. Lithos, 11 (4) 301-310 doi:10.1016/0024-4937(78)90037-3

Bass, J.D. and Weidner, D.J. (1984) Elasticity of single-crystal orthoferrosilite. Journal of Geophysical Research: 89: 4359-4371.

Hugh-Jones, Demelza, Sharp, Thomas, Angel, Ross, Woodland, Alan (1997) The transition of orthoferrosilite to high-pressure C2/c clinoferrosilite at ambient temperature. European Journal of Mineralogy, 8 (6) 1337-1346 doi:10.1127/ejm/8/6/1337

Woodland, Alan B., Angel, Ross J. (1997) Reversal of the orthoferrosilite - high-P clinoferrosilite transition, a phase diagram for FeSiO3 and implications for the mineralogy of the Earth's upper mantle. European Journal of Mineralogy, 9 (2) 245-254 doi:10.1127/ejm/9/2/0245

(2001) Ferrosilite. Handbook of Mineralogy. Mineralogical Society of America

Tarantino, Serena C., Domeneghetti, M. Chiara, Carpenter, Michael A., Shaw, Cliff J.S., Tazzoli, Vittorio (2002) Mixing properties of the enstatite-ferrosilite solid solution: I. A macroscopic perspective. European Journal of Mineralogy, 14 (3) 525-536 doi:10.1127/0935-1221/2002/0014-0525

Tarantino, Serena C., Ballaran, Tiziana Boffa, Carpenter, Michael A., Domeneghetti, M. Chiara, Tazzoli, Vittorio (2002) Mixing properties of the enstatite-ferrosilite solid solution: II. A microscopic perspective. European Journal of Mineralogy, 14 (3) 537-547 doi:10.1127/0935-1221/2002/0014-0537

Localities for FerrosiliteHide

Showing 130 localities.

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.

Hide all sections | Show all sections

Locality ListHide

- 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.


Algeria
Djanet Province Djanet District ⓘ Gour Oumelalen	L. Latouche : "L'orthoferrosilite et les roches associées de la région des Gour Oumeladen (N.E. Ahaggar, Algérie)
Tamanrasset Province (Tamanghasset Province) Tamanrasset District ⓘ Tidjenouine	Bendaoud et al. (2003)

Angola
Huambo Province Jolomba ⓘ Jolomba meteorite	Sighinolfi et al. (1990)

Antarctica
East Antarctica Victoria Land Allan Hills ⓘ Allan Hills A76004 meteorite	Graham (1979)

Argentina
La Pampa Province Realicó Department ⓘ Realicó meteorite	Saavedra et al. (2016)

Australia
Victoria Macedon Ranges ⓘ Spring Hill	Sutton (2017)
Macedon Ranges Shire Malmsbury ⓘ Rollinsons quarry	Sutton & Mills (2012)
Western Australia Coolgardie Shire Nepean ⓘ Tantalite Hill pegmatite (Mercer's Find)	Simpson (1948)

Austria
Styria Südoststeiermark District Klöch ⓘ Basalt quarry	Taucher et al. (1998)

Brazil
Pará Marabá ⓘ Salobo Mine	Vale SA

Cameroon
Northwest Region Donga-Mantung Nkambe ⓘ Adamellite outcrop	Tetsopgang et al. (2003)

Canada
Manitoba Thompson Nickel Belt Moab-Setting Lakes area ⓘ Thompson Mine	Pan et al. (1993) +1 other reference
Newfoundland and Labrador Labrador Carol Lake ⓘ Smallwood Mine	Klein (1966)
ⓘ Nain Complex	Waard
ⓘ Ikkinikulluit Brook	Berg et al. (1976)
Wabush Lake ⓘ Scully mine	Klein (1966)
ⓘ Walsh River rapids	www.geosurv.gov.nf.ca/gacmap/LAB2.html.
Newfoundland Baie Verte Peninsula King's Point ⓘ King's Point complex	Miller et al. (1995)
Nova Scotia Halifax Co. ⓘ Popes Harbour	Owen et al. (1988)
Nunavut Kitikmeot Region ⓘ Arcedeckne Island	Can. Mineral. (1993)
Qikiqtaaluk Region Baffin Island ⓘ Pond Inlet	Deer
Ontario Parry Sound District Georgian Bay ⓘ Bonnet Island	Grew et al. (2010)
Thunder Bay District Killala Lake Area ⓘ Prairie Lake carbonatite	Sage (1987)
Québec Abitibi-Témiscamingue La Vallée-de-l'Or RCM Réservoir-Dozois ⓘ Cabonga Reservoir ?	Olivier Langelier Collection
Outaouais Pontiac RCM Otter Lake ⓘ ~~Yates Mine~~	Daryl Macfarland
Saskatchewan ⓘ Foster River	Steadman et al. (2015) +1 other reference

China
Gansu Jinchang Jinchuan District ⓘ Jinchuan Ni-Cu-PGE deposit (Baijiajuzi Ni-Cu-PGE deposit)	Xue et al. (2023)
Guangxi Nandan-Hechi Sn-W metallogenic belt ⓘ Dachang ore field	He et al. (2024)
Hubei Huangshi Daye Co. Edong Mining District ⓘ Tonglushan Mine	Zhang et al. (2023)
Hunan Chenzhou Yizhang Co. Dongpo ore field ⓘ Shizhuyuan Mine	Yingjun Liu et al. (1983)
Jiangxi Fuzhou ⓘ Xiangshan Uranium ore field	Yaohui Jiang et al. (2005)
Xinjiang Hami Prefecture (Kumul Prefecture; Qumul Prefecture) Yizhou District Baishiquan ore district ⓘ Baishiquan Cu-Ni deposit	Fengmei Chai et al. (2006)

Finland
South Ostrobothnia Seinäjoki-Lapua ⓘ Vittinki Mn-Fe formation	Henry (1935) +1 other reference

France
Occitanie Pyrénées-Orientales Céret Reynès ⓘ Roca Gelera (Roque Jalaire)	Berbain et al. (2005)

Germany
North Rhine-Westphalia Arnsberg Märkischer Kreis Iserlohn Letmathe Helmke quarry nature reserve ⓘ Genna zinc smelter slag locality	Bender et al. (1994)
Rhineland-Palatinate Ahrweiler Brohltal Glees ⓘ Gleeser Felder	Blass et al. (2006)
Spessart Hannebach ⓘ Hannebacher Ley	Blass (2010)
Mayen-Koblenz Maifeld Ochtendung ⓘ Wannenköpfe Quarry	Weiß et al. (1999)
Mendig Mendig ⓘ In den Dellen quarries	Blass et al. (2006)
ⓘ Thelenberg	Blass et al. (2006)
Wingertsberg ⓘ Pumice quarries	Blass et al. (2006)
Pellenz Kruft ⓘ Krufter Ofen	Blass et al. (2006)
Vordereifel Ettringen ⓘ Caspar quarry	Blass et al. (2006)
Vulkaneifel Daun Strohn ⓘ Wartgesberg	Marko Burkhardt Collection

Hungary
Borsod-Abaúj-Zemplén County Tokaj District ⓘ Patkóbánya	Sándor et al. (2005)

India
Andhra Pradesh Krishna District ⓘ Kondapalle	Leelanandam
Karnataka Bangalore Urban District ⓘ Kodamballi	Anantha Iyer et al. (1975)
ⓘ Maralavadi	Anantha Iyer et al. (1975)
Rajasthan Jodhpur Division Jodhpur District ⓘ Bhawad LL6 chondrite	Saikia et al. (2026)
Tamil Nadu Chennai District ⓘ Pallavaram	Howie (1955)
Namakkal District Nainamalai Adivaram ⓘ Nainarmalai hill	N. Subba Reddy (1982)

Indian Ocean
ⓘ Dirck Hartog Ridge	Maciąg et al. (2019)

Italy
Sicily Metropolitan City of Messina Eolie Islands (Aeolian Islands) Lipari ⓘ Vulcano Island	Ciriotti et al. (2011)

Japan
Kagoshima Prefecture Kagoshima District Mishima village ⓘ Satsuma-Ioujima (Satsuma-Iwojima; Iou island)	PXRD by John Attard
ⓘ Iodake (Iwodake; Ioudake)	PXRD by John Attard
Kanagawa Prefecture Ashigarakami District ⓘ Mount Hakone	Kuno (1954)
Yamakita ⓘ Hokizawa (Hookizawa)	Kuno
Ashigarashimo District Yugawara ⓘ Hirogawara	Kuno (1954)
Okayama Prefecture Takahashi City Bitchū Shitouyouze ⓘ Sampo mine	Matsueda (1980)
Wakayama Prefecture Higashimuro district Kushimoto ⓘ Koza river alluvials (Kozagawa)	Analyses by Dr Shinichi Kuramoto and Dr ...
Shingu City ⓘ Kumano river alluvials (Kumanogawa)	Analyses by Dr Shinichi Kuramoto and Dr ...

Kenya
Kajiado County ⓘ Mount Suswa (Suswa Volcano)	Rocky Mountain (53rd)

Lithuania
Panevėžys County Panevėžys City Municipality ⓘ Jodzie meteorite	Mason B. (1979)

Mongolia
Dornogovi Province Erdene District ⓘ Khamaryn– Khural–Khiid combustion metamorphic complex	Savina et al. (2020) +1 other reference

Myanmar
Kachin State Mohnyin District Hpakant Township (Hpakan; Phakant; Phakan) Hpakant-Tawmaw Jade Tract ⓘ Tawmaw (Tawhmaw; Taw Maw)	Zhang et al. (2025)

New Zealand
Bay of Plenty Region Rotorua District Okataina ⓘ ~~Mount Tarawera~~	Hiess et al. (2007)
ⓘ Whakaari (White Island)	COLE et al. (2000)
Northland Region ⓘ Whangarei District	ganko.eps.nagoya-u.ac.jp (n.d.)

Nigeria
Zamfara Maru ⓘ Bingi BIF formation	Mücke et al. (2015)

North Macedonia
Kavadarci Municipality Vozarci ⓘ Euronickel smelter slag locality	Đorđević et al. (2024)

Northwest Africa Meteorites
ⓘ Northwest Africa 13120 Lunar meteorite (NWA 13120)	Xia et al. (2021)
ⓘ Northwest Africa 8657 Martian meteorite	www.lpi.usra.edu (2015) +5 other references

Norway
Agder Flekkefjord ⓘ Hidra	Deer
Nordland Hadsel Hadseløya ⓘ Eastern side	Devaraju et al. (1974)
Narvik Ballangen Råna Bruvann ore field ⓘ Bruvann Nickel and Olivine Mine	Phillip Betancourt

Philippines
Luzon Bicol Region Albay Province ⓘ Mayon Volcano	Ruth et al. (2021)

Poland
Lower Silesian Voivodeship Kłodzko County Gmina Nowa Ruda ⓘ Nowa Ruda Massif	Borkowska (1985)
Pomeranian Voivodeship Kościerzyna County Gmina Kościerzyna ⓘ Kościerzyna IG -1 borehole	Krzemińska E. & Bagiński B. 2003: THE KOŚCIERZYNA AND ŻARNOWIEC ENDERBITES ( N-POLAND)
Puck County Gmina Krokowa ⓘ Żarnowiec	Krzemińska E. & Bagiński B. 2003: THE KOŚCIERZYNA AND ŻARNOWIEC ENDERBITES ( N-POLAND)

Romania
Maramureș County Târgu Lăpuș ⓘ Răzoare	Hîrtopanu (2006) +4 other references

Russia
Chelyabinsk Oblast Argayashsky District ⓘ Pit No. 400	Am Min 90:1402-1412 (deposit item)
ⓘ Gumbeyka meteorite ?	Dugushkina et al. (2023)
Kaslinsky District Kasli ⓘ Mauk deposit	Safina et al. (2015)
Korkinsky District ⓘ Korkino	Sharygin et al. (2010)
Irkutsk Oblast Slyudyansky District Slyudyanka ⓘ Tounkinskaya valley	Pavel M. Kartashov (n.d.)
Khabarovsk Krai Ayano-Maysky district Konder alkaline-ultrabasic massif ⓘ Anomal’niy Cu-PGE deposit	- (2016) +1 other reference
Krasnoyarsk Krai Taymyrsky Dolgano-Nenetsky District Kureika river Dzheltul'skii massif (Dzhaltul) ⓘ Olgafrankite type locality	Vereshchagin et al. (2025)
ⓘ Popigai impact crater (Popigai impact structure)	Shchukina et al. (Vol. 473, No. 1, pp. 333-337)
Kurgan Oblast ⓘ Kargapole meteorite	Erokhin et al. (2017, December)
Murmansk Oblast ⓘ Khibinpakhkchorr Mountain	Yakovenchuk et al. (2008)
Kolsky District ⓘ Tepsi ultrabasic body
Monche tundra intrusion ⓘ Nud II mine
ⓘ Mount Generalskaya intrusion	Smol’kin et al. (2023)
Primorsky Krai Khasansky District ⓘ Kedrovaya Pad Nature Reserve	Timofeeva et al. (2014)
Olginsky District ⓘ Taukha terrane	Kazachenko et al. (2013)
Republic of Karelia Suojärvi District ⓘ Kuolisma gabbrodolerite	Коневин et al. (2020)
Sakha Aldan ⓘ Inagli Massif	Okrugin et al. (2018)
Kobyaysky District ⓘ Kis-kuel deposit	Kostin (2021)
Tomponsky District ⓘ Burgali Ore Field	Trunilina et al. (2024)
Verkhoyansk District Yana River Basin Yana-Adycha Region ⓘ Arga-Ynnakh-Khaya granite Massif	Trunilina et al. (2024)
Saratov Oblast Pavlovka ⓘ Pavlovka meteorite	Bunch (1975)
Sayan Mountains Il’chir ophiolite belt Ospa–Kitoi massif (Ospin–Kitoi massif) ⓘ Gorlykgol deposit	Tatarinov et al. (2021)

Slovakia
Banská Bystrica Region Žarnovica District Nová Baňa ⓘ Nová Baňa deposit	Koděra et al. (1986)
Prešov Region Prešov District Gregorovce ⓘ Hubošovce quarry	Myšľan et al. (2024)

South Africa
Northern Cape Namakwa District Municipality Khâi-Ma Local Municipality ⓘ Aggeneys	Cairncross et al. (1995)

South Korea
ⓘ Jeju Province	Lee (ed) +7 other references

Spain
Galicia Pontevedra A Cañiza ⓘ A Franqueira	Martin-Izard et al. (1995)

Sweden
Gävleborg County Ljusdal Los ⓘ Mansjöberg Fe Mine	Henry (1935)
Ovanåker ⓘ Loberget
Södermanland County Nyköping Tunaberg ⓘ Strömshult Mines	Sundius (1932) +1 other reference

UK
Scotland Aberdeenshire Strathdon Glenbuchat ⓘ Craig Wood	Henry (1935) +1 other reference
Highland North， West and Central Sutherland ⓘ Scourie	Muir
Strathpeffer and Lochalsh Wester Ross Glenelg Ratagain Intrusion ⓘ Loch Duich	Henry (1935) +2 other references
Wester Ross， Strathpeffer and Lochalsh Lochalsh Dornie Keppoch ⓘ Allt a Mhuilin	Render (n.d.)
North Ayrshire ⓘ Isle of Arran	...

Ukraine
Donetsk Oblast Volnovakha Raion Chlebodarovsk ⓘ Khlebodarov quarry	Sharygin et al. (2014)
Kirovohrad Oblast ⓘ Boltysh Crater	Gurov et al. (2015)

USA
California Riverside County Riverside ⓘ Mount Rubidoux	Larsen et al. (1948 [1950])
Maine Piscataquis County Big Moose Township ⓘ Fayalite locality	Espenshade
Little Moose Township ⓘ Route 16 roadcut	Espenshade
Montana Madison County ⓘ Carter Creek	Hanbook of Mineralogy
New Hampshire Carroll County Bartlett Iron Mountain ⓘ Iron Mountain Mines	Rocks&Min. 76:256
New York Essex County Keene Township ⓘ Mount Marcy	Jaffe et al. (1978)
Orange County ⓘ Town of Monroe	NY State Museum spec. no. 15862
North Carolina Alexander County Hiddenite ⓘ North American Emerald Mine	Speer et al. (2008)
Macon County Cowee Valley Ellijay Mining District Franklin ⓘ Winding Stair Gap Roadcut	EL-Shazley et al. (2011)
Oregon Klamath County ⓘ ~~Summit Rock~~	- (Bill Wise, Northern California Mineralogical Association spring 2003 newsletter) +1 other reference
Utah Wayne County ⓘ Hanksville	Mineralogical Society of America - ...

Mars


The Moon

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, 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 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
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/vulnerability Current server date and time: September 1, 2026 04:00:34 Page updated: August 19, 2026 01:55:07

Go to top of page

Ferrosilite

About FerrosiliteHide

Unique IdentifiersHide

Similar NamesHide

Classification of FerrosiliteHide

IMA Classification of FerrosiliteHide

Mineral SymbolsHide

Pronunciation of FerrosiliteHide

Physical Properties of FerrosiliteHide

Optical Data of FerrosiliteHide

Chemistry of FerrosiliteHide

Crystallography of FerrosiliteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Synonyms of FerrosiliteHide

Other Language Names for FerrosiliteHide

Relationship of Ferrosilite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of FerrosiliteHide

Other InformationHide

Ferrosilite in petrologyHide

Internet Links for FerrosiliteHide

References for FerrosiliteHide

Localities for FerrosiliteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide