[Mineral Auctions] [Register] [Current Auctions] [Log In] [www.danweinrich.com] Weinrich Minerals Auctions, Inc Specializing In Live Weekly Auctions Of Top Quality Mineral Specimens The Place To Find Great Specimens At Great Prices! General Magnesio-arfvedsonite InformationNaNa2(Mg4Fe++)Si8O22(OH)2 |
Molecular Weight = 832.72 gm |
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Sodium 8.28 % Na 11.16 % Na2O |
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Magnesium 11.67 % Mg 19.36 % MgO |
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Iron 6.71 % Fe 9.59 % Fe2O3 |
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Silicon 26.98 % Si 57.72 % SiO2 |
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Hydrogen 0.24 % H 2.16 % H2O |
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Oxygen 46.11 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Na3Mg4Fe3+(Si8O22)(OH)2 |
Valid Species (Pre-IMA) 1957 |
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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Magnesio-arfvedsonite Crystallographya:b:c =0.5462:1:0.2949 |
a = 9.796, b = 17.932, c = 5.289, Z = 2; beta = 104.99° V = 897.46 Den(Calc)= 3.08 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
By Intensity(I/Io): 3.12(1), 8.2(0.75), 2.798(0.4), |
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| Physical Properties of Magnesio-arfvedsoniteBlack, Gray. |
3.17 |
Subopaque |
5-6 - Between Apatite and Orthoclase |
Vitreous (Glassy) |
| Optical Properties of Magnesio-arfvedsoniteCI meas= 0.04 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2149,KPDmeas= 0.2088,KC= 0.2176 Ncalc = 1.67 - 1.69 Biaxial (-), a=1.66, b=1.662, g=1.664, bire=0.0040, 2V(Calc)=88, 2V(Meas)=33-40. |
| Calculated Properties of Magnesio-arfvedsoniteBulk Density (Electron Density)=3.06 gm/cc |
note: Specific Gravity of Magnesio-arfvedsonite =3.08 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEMagnesio-arfvedsonite = 3.40 barns/electron |
U=PEMagnesio-arfvedsonite x rElectron Density= 10.39 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Magnesio-arfvedsonite is Not Radioactive | Magnesio-arfvedsonite Classification66.01.03c.08 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03c)Group 4, the sodic amphiboles |
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09.DE.25 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 Magnesio-arfvedsonite InformationNAME( CanMin, Vol 38) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Magnesio-arfvedsonite : |
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Athena 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 Magnesio-arfvedsonite using: Visit our Advertisers for Magnesio-arfvedsonite : 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 Magnesio-arfvedsonite Mineral Data : Ask about Magnesio-arfvedsonite here : Print or Cut-and-Paste your Magnesio-arfvedsonite Specimen Label here :
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