[Mineral Forums] [Minerals for Sale] [About Us] [En Espanol] [Mineral Gallery] Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996 General Sodic-ferri-ferropedrizite InformationNaLi2(Fe+++2Fe++3)Si8O22(OH)2 |
Molecular Weight = 851.87 gm |
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Sodium 1.81 % Na 2.44 % Na2O |
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Lithium 1.96 % Li 4.21 % Li2O |
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Magnesium 2.71 % Mg 4.49 % MgO |
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Titanium 0.73 % Ti 1.22 % TiO2 |
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Manganese 0.45 % Mn 0.58 % MnO |
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Aluminum 0.67 % Al 1.26 % Al2O3 |
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Iron 19.93 % Fe 12.57 % FeO / 14.53 % Fe2O3 |
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Silicon 26.38 % Si 56.43 % SiO2 |
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Hydrogen 0.17 % H 1.53 % H2O |
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Oxygen 44.04 % O |
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Fluorine 1.16 % F 1.16 % F |
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F -0.49 % -O=F2 |
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______ ______ |
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100.00 % 99.92 % = TOTAL OXIDE |
Na0.52Li1.82Na0.15Fe3+1.55Fe2+1.49Mg0.95Li0.58Al0.21Ti0.13Mn2+0.07Si8O22(OH)1.45F0.52 |
Metamorphic episyenites (deslicification and albitizaton of a cordierite-bearing porphyritic granite). New Group 5 amphibole classification. |
Approved IMA 2003 (Dana # Added) |
Pedriza Massif, Sierra del Guadarrama, Spain. Link to MinDat.org Location Data. |
Named for the locality and the Fe++ and Fe+++ clinoamphiboles. |
IMA2001-068 |
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| | Sodic-ferri-ferropedrizite Crystallographya:b:c =0.531:1:0.2962 |
a = 9.496, b = 17.883, c = 5.297, Z = 2; beta = 102.06° V = 879.67 Den(Calc)= 3.22 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
By Intensity(I/Io): 8.241(1)(110), 2.714(0.72)(151), 3.05(0.6)(310),3.416(0.39)(131), 2.494(0.36)(202), 4.471(0.33)(040), 2.164(0.23)(261), 3.563(0.23)(221), |
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| Physical Properties of Sodic-ferri-ferropedrizite{110} Good, {110} Good |
Black. |
Translucent |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
Vitreous (Glassy) |
gray |
| Optical Properties of Sodic-ferri-ferropedriziteBiaxial (?) |
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NCalc= 1.73 - from Gladstone-Dale relationship (KC = 0.2276) where Ncalc=Dcalc*KC+1 |
| Calculated Properties of Sodic-ferri-ferropedriziteBulk Density (Electron Density)=3.16 gm/cc |
note: Specific Gravity of Sodic-ferri-ferropedrizite =3.22 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PESodic-ferri-ferropedrizite = 7.29 barns/electron |
U=PESodic-ferri-ferropedrizite x rElectron Density= 23.05 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Sodic-ferri-ferropedrizite is Not Radioactive | Sodic-ferri-ferropedrizite Classification66.01.01.09b (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.01)Group 1, the Mg-Fe-Mn-Li amphiboles (Monoclinic) |
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09.DE.05 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 Sodic-ferri-ferropedrizite InformationNAME( CanMin, v 41, p 1345) PHYS. PROP.(CanMin, v 41, p 1345) OPTIC PROP.(CanMin, v 41, p 1345) |
Links to other databases for Sodic-ferri-ferropedrizite : |
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 Sodic-ferri-ferropedrizite using: Visit our Advertisers for Sodic-ferri-ferropedrizite : 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 Sodic-ferri-ferropedrizite Mineral Data : Ask about Sodic-ferri-ferropedrizite here : Print or Cut-and-Paste your Sodic-ferri-ferropedrizite Specimen Label here :
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