[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery] Dakota Matrix Minerals Updated weekly, for the collector, educator, and researcher since 1996 Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome General Aluminobarroisite Information[ ]CaNaMg3Al2(Si7Al)O22(OH)2 |
Molecular Weight = 799.53 gm |
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Sodium 2.88 % Na 3.88 % Na2O |
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Calcium 5.01 % Ca 7.01 % CaO |
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Magnesium 9.12 % Mg 15.12 % MgO |
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Aluminum 10.12 % Al 19.13 % Al2O3 |
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Silicon 24.59 % Si 52.60 % SiO2 |
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Hydrogen 0.25 % H 2.25 % H2O |
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Oxygen 48.03 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
CaNaMg3Al2(Si7AlO22)(OH)2 |
Approved 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). |
Aluminobarroisite |
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| | Aluminobarroisite Crystallographya:b:c =0.5499:1:0.2944 |
a = 9.9, b = 18, c = 5.3, Z = 2; beta = 105° V = 912.28 Den(Calc)= 2.91 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Physical Properties of Aluminobarroisite2.94 |
Transparent to Translucent |
5-6 - Between Apatite and Orthoclase |
Vitreous (Glassy) |
| Optical Properties of AluminobarroisiteBiaxial (-) |
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NCalc= 1.61 - from Gladstone-Dale relationship (KC = 0.209) where Ncalc=Dcalc*KC+1 |
NCalc= 1.61 - from Gladstone-Dale relationship (KC = 0.209) where Ncalc=Dmeas*KC+1 | Calculated Properties of AluminobarroisiteBulk Density (Electron Density)=2.90 gm/cc |
note: Specific Gravity of Aluminobarroisite =2.91 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEAluminobarroisite = 2.11 barns/electron |
U=PEAluminobarroisite x rElectron Density= 6.11 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Aluminobarroisite is Not Radioactive | Aluminobarroisite Classification66.01.03b.05a (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 Aluminobarroisite InformationPHYS. PROP.(List of New Min. Names,28-33th,1974-1984) |
Links to other databases for Aluminobarroisite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Aluminobarroisite using: Visit our Advertisers for Aluminobarroisite : B & L Fine MineralsDan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Excalibur Minerals Exceptional Minerals Fabre Minerals John Betts Fine Minerals Lapis Mineral Journal Mineral News UV Tools Wrights Rock Shop Translate Aluminobarroisite Mineral Data : Ask about Aluminobarroisite here : Print or Cut-and-Paste your Aluminobarroisite Specimen Label here :
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