[Minerals] [Gems] [Sale Items] [Gold Rings] [Big Stuff] [Main Page] Shop early for Holiday Season and get the best stuff. You can put it on layaway for up to six weeks! General Ferri-ferrobarroisite Information[ ]CaNa(Fe++)3(Fe+++)2(Si7Al)O22(OH)2 |
Molecular Weight = 951.88 gm |
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Sodium 2.42 % Na 3.26 % Na2O |
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Calcium 4.21 % Ca 5.89 % CaO |
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Aluminum 2.83 % Al 5.36 % Al2O3 |
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Iron 29.33 % Fe 22.64 % FeO / 16.78 % Fe2O3 |
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Silicon 20.65 % Si 44.19 % SiO2 |
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Hydrogen 0.21 % H 1.89 % H2O |
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Oxygen 40.34 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
CaNaFe2+3Fe3+2(Si7AlO22)(OH)2 |
Proposed IMA 1997 (Dana # Added) |
Link to MinDat.org Location Data. |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). |
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| | Ferri-ferrobarroisite Crystallography Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Physical Properties of Ferri-ferrobarroisite3.5 |
| Optical Properties of Ferri-ferrobarroisite NCalc= 1.78 - from Gladstone-Dale relationship (KC = 0.2234) where Ncalc=Dmeas*KC+1 |
| Calculated Properties of Ferri-ferrobarroisiteBulk Density (Electron Density)=3.43 gm/cc |
note: Specific Gravity of Ferri-ferrobarroisite =3.50 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEFerri-ferrobarroisite = 10.17 barns/electron |
U=PEFerri-ferrobarroisite x rElectron Density= 34.84 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferri-ferrobarroisite is Not Radioactive | Ferri-ferrobarroisite Classification66.01.03b.08a (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03b)Group 3, the sodic-calcic amphiboles |
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09.DE.20 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 Ferri-ferrobarroisite InformationPHYS. PROP.(Min.Mag.,Vol.61,p305,1997) |
Links to other databases for Ferri-ferrobarroisite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Ferri-ferrobarroisite using: Visit our Advertisers for Ferri-ferrobarroisite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Ferri-ferrobarroisite Mineral Data : Ask about Ferri-ferrobarroisite here : Print or Cut-and-Paste your Ferri-ferrobarroisite Specimen Label here :
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