General Ferroferritschermakite Information Chemical Formula: |
Ca2(Fe++,Mg)3Fe+++2(Si7Al)O22(OH)2 |
Composition: |
Molecular Weight = 937.43 gm |
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Calcium 8.55 % Ca 11.96 % CaO |
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Magnesium 2.59 % Mg 4.30 % MgO |
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Aluminum 2.88 % Al 5.44 % Al2O3 |
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Iron 23.83 % Fe 15.33 % FeO / 17.04 % Fe2O3 |
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Silicon 20.97 % Si 44.87 % SiO2 |
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Hydrogen 0.22 % H 1.92 % H2O |
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Oxygen 40.96 % O |
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______ ______ |
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100.00 % 100.85 % = TOTAL OXIDE |
Empirical Formula: |
Ca2Fe2+2MgFe3+2Si7AlO22(OH)2 |
IMA Status: |
Not Approved IMA 1997 |
Locality: |
Link to MinDat.org Location Data. |
Name Origin: |
Named for its composition and for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist. |
| | Ferroferritschermakite Image
Images:
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Ferroferritschermakite Crystallography Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Physical Properties of Ferroferritschermakite Cleavage: |
{110} Good, {110} Good |
Color: |
Greenish black. |
Hardness: |
5-6 - Between Apatite and Orthoclase |
| Optical Properties of Ferroferritschermakite Optical Data: |
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| Calculated Properties of Ferroferritschermakite Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEFerroferritschermakite = 9.07 barns/electron |
U=PEFerroferritschermakite x rElectron Density= . barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferroferritschermakite is Not Radioactive | Ferroferritschermakite Classification Dana Class: |
66.01.03a.09 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03a)Group 2, the calcic amphiboles |
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Strunz Class: |
09.DE.10 09 - SILICATES (Germanates) |
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09.D - Inosilicates* Structural terminology according to Liebau (1985) |
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09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family |
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| Other Ferroferritschermakite Information References: |
NAME( Dana8) |
See Also: |
Links to other databases for Ferroferritschermakite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Ecole des Mines de Paris 4 - GeoScienceWorld 5 - Google Images 6 - Google Scholar 7 - MinDAT 8 - Mineralienatlas (Deutsch) 9 - Online Mineral Museum 10 - QUT Mineral Atlas 11 - Ruff.Info Search for Ferroferritschermakite using: Visit our Advertisers for Ferroferritschermakite : A Bijoux Google Search for FerroferritschermakiteAdam's Minerals Google Search for Ferroferritschermakite Cape Minerals Google Search for Ferroferritschermakite Dakota Matrix Minerals Google Search for Ferroferritschermakite Excalibur Mineral Corp. Google Search for Ferroferritschermakite Exceptional Minerals Google Search for Ferroferritschermakite John Betts Fine Minerals Search for Ferroferritschermakite McDougall Minerals Google Search for Ferroferritschermakite Mineral News Website Link Rock and Mineral Shows Google Search for Ferroferritschermakite Weinrich Minerals, Inc. Google Search for Ferroferritschermakite Ask about Ferroferritschermakite here : Print or Cut-and-Paste your Ferroferritschermakite Specimen Label here :
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