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Ferrokesterite Mineral Data
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General Ferrokesterite Information
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 Chemical Formula: |
Cu2(Fe,Zn)SnS4 |
| Composition: |
Molecular Weight = 432.30 gm |
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Zinc 3.78 % Zn |
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Iron 9.69 % Fe |
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Copper 29.40 % Cu |
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Tin 27.46 % Sn |
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Sulfur 29.67 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Cu2Zn0.25Fe2+0.75SnS4 |
| IMA Status: |
Approved IMA 1989 |
| Locality: |
Cligga mine, Cornwall, England. Link to MinDat.org Location Data. |
| Name Origin: |
Named for its relationship to kesterite. |
| Name Pronunciation: |
Ferrokesterite + Pronunciation  |
| Synonym: |
ICSD 26721 |
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PDF 31-463 |
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Ferrokesterite Image |
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Images:
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Ferrokesterite Andorite
Comments: Small, tetragonal crystal of gray ferrokesterite (circled in thumbnail) attached on the surface of a larger striated andorite specimen.
Location: San Jose mine, Oruro, Bolivia.
Scale: Crystal size 0.2 mm.
© John Veevaert |
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Ferrokesterite Crystallography
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| Axial Ratios: |
a:c = 1:2.00313 |
| Cell Dimensions: |
a = 5.427, c = 10.871, Z = 2; V = 320.18 Den(Calc)= 4.48 |
| Crystal System: |
Tetragonal - Scalenohedral H-M Symbol (4 2m) Space Group: I 42m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.13(1), 1.919(0.5), 1.11(0.4),1.64(0.3), 1.04(0.1), 1.11(0.1), 1.25(0.1), 2.71(0.1), 4.86(0.1), |
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Physical Properties of Ferrokesterite
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| Cleavage: |
{110} Distinct |
| Color: |
Gray, Steel gray. |
| Diaphaneity: |
Opaque |
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
| Hardness: |
4 - Fluorite |
| Luster: |
Metallic |
| Streak: |
black |
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Calculated Properties of Ferrokesterite
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| Electron Density: |
Bulk Density (Electron Density)=4.12 gm/cc
note: Specific Gravity of Ferrokesterite =4.48 gm/cc.
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| Fermion Index: |
Fermion Index = 0.05
Boson Index = 0.95 |
| Photoelectric: |
PEFerrokesterite = 102.24 barns/electron
U=PEFerrokesterite x rElectron Density= 421.69 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrokesterite is Not Radioactive |
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Ferrokesterite Classification
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| Dana Class: |
02.09.02.10 (02)Sulfides - Including Selenides and Tellurides |
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(02.09)where Am Bn Xp, with (m+n):p=1:1 |
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(02.09.02)Stannite Group (Tetragonal: I-42m) A2BCS type |
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02.09.02.01 Stannite Cu2FeSnS4 I 42m 4 2m |
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02.09.02.02 Cernyite Cu2CdSnS4 I 42m 4 2m |
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02.09.02.03 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m |
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02.09.02.04 Kuramite Cu3SnS4 I 42m 4 2m |
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02.09.02.05 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 432, P 43m, or P m3m Cubic |
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02.09.02.06 Hocartite Ag2FeSnS4 I 42m 4 2m |
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02.09.02.07 Pirquitasite Ag2ZnSnS4 I 42m 4 2m |
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02.09.02.08 Velikite Cu2HgSnS4 I 42m 4 2m |
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02.09.02.09 Kesterite Cu2(Zn,Fe)SnS4 I 4 4 |
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02.09.02.10 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m |
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02.09.02.11 Barquillite! Cu2CdGeS4 I 42m 4 2m |
| Strunz Class: |
02.CB.15a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.C - Metal Sulfides, M:S = 1:1 (and similar) |
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02.CB -With Zn, Fe, Cu, Ag, Au, etc |
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02.CB.15a Cernyite Cu2CdSnS4 I 42m 4 2m |
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02.CB.15a Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m |
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02.CB.15a Kesterite Cu2(Zn,Fe)SnS4 I 4 4 |
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02.CB.15a Hocartite Ag2FeSnS4 I 42m 4 2m |
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02.CB.15a Idaite Cu5FeS6 P 63/mmc 6/m 2/m 2/m |
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02.CB.15a Kuramite Cu3SnS4 I 42m 4 2m |
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02.CB.15a Pirquitasite Ag2ZnSnS4 I 42m 4 2m |
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02.CB.15a Stannite Cu2FeSnS4 I 42m 4 2m |
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02.CB.15a Velikite Cu2HgSnS4 I 42m 4 2m |
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Other Ferrokesterite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) |
| See Also: |
Links to other databases for Ferrokesterite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST
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Print or Cut-and-Paste your Ferrokesterite Specimen Label here :
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Ferrokesterite
Cu2(Fe,Zn)SnS4
Dana No: 02.09.02.10 Strunz No: 02.CB.15a
Locality:
Notes:
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