General Ferrowinchite Information Chemical Formula: |
[ ](CaNa)Fe++4(Al,Fe+++)Si8O22(OH)2 |
Composition: |
Molecular Weight = 931.34 gm |
|
Sodium 2.47 % Na 3.33 % Na2O |
|
Calcium 4.30 % Ca 6.02 % CaO |
|
Aluminum 2.17 % Al 4.11 % Al2O3 |
|
Iron 25.48 % Fe 30.86 % FeO / 2.14 % Fe2O3 |
|
Silicon 24.12 % Si 51.61 % SiO2 |
|
Hydrogen 0.22 % H 1.93 % H2O |
|
Oxygen 41.23 % O |
|
______ ______ |
|
100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
CaNaFe2+4Al0.75Fe3+0.25(Si8O22)(OH)2 |
IMA Status: |
Approved IMA 1978 |
Locality: |
Link to MinDat.org Location Data. |
Name Origin: |
Named for its composition and for Howard J. Winch, Geological survey of India. |
Name Pronunciation: |
Ferrowinchite + Pronunciation |
| | Ferrowinchite Image
Images:
|
|
Ferrowinchite Crystallography Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Physical Properties of Ferrowinchite Cleavage: |
{???} Good |
Color: |
Blue green, Light green. |
Hardness: |
5-6 - Between Apatite and Orthoclase |
Streak: |
white |
| Optical Properties of Ferrowinchite Optical Data: |
|
| Calculated Properties of Ferrowinchite Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEFerrowinchite = 9.12 barns/electron |
U=PEFerrowinchite x rElectron Density= . barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferrowinchite is Not Radioactive | Ferrowinchite Classification Dana Class: |
66.01.03b.02 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
|
(66.01)with P=2 amphibole configuration |
|
(66.01.03b)Group 3, the sodic-calcic amphiboles |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strunz Class: |
09.DE.20 09 - SILICATES (Germanates) |
|
09.D - Inosilicates* Structural terminology according to Liebau (1985) |
|
09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Other Ferrowinchite Information References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Ferrowinchite : |
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 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Ferrowinchite using: Visit our Advertisers for Ferrowinchite : A Bijoux Google Search for FerrowinchiteAdam's Minerals Google Search for Ferrowinchite Cape Minerals Google Search for Ferrowinchite Dakota Matrix Minerals Google Search for Ferrowinchite Excalibur Mineral Corp. Google Search for Ferrowinchite Exceptional Minerals Google Search for Ferrowinchite John Betts Fine Minerals Search for Ferrowinchite McDougall Minerals Google Search for Ferrowinchite Mineral News Website Link Rock and Mineral Shows Google Search for Ferrowinchite Weinrich Minerals, Inc. Google Search for Ferrowinchite Ask about Ferrowinchite here : Print or Cut-and-Paste your Ferrowinchite Specimen Label here :
| |
|
| |