Mineral of the Month Club - An Inexpensive Way to Enjoy Minerals General Filipstadite Information(Mn++,Mg)4Sb+++++Fe+++O8 |
Molecular Weight = 475.43 gm |
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Magnesium 7.67 % Mg 12.72 % MgO |
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Manganese 28.89 % Mn 37.30 % MnO |
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Aluminum 0.34 % Al 0.64 % Al2O3 |
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Iron 10.57 % Fe 15.12 % Fe2O3 |
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Antimony 25.61 % Sb 34.02 % Sb2O5 |
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Oxygen 26.92 % O |
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______ ______ |
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100.00 % 99.80 % = TOTAL OXIDE |
Mn2+2.5Mg1.5Fe3+0.9SbAl0.06O8 |
Metamorphosed Fe-Mn deposits. |
Approved IMA 1988 |
Langban and Jakobsberg, Varmland, Sweden. Link to MinDat.org Location Data. |
Named for the town of Filipstad, Sweden, which is near the mine. |
Filipstadite + Pronunciation |
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Filipstadite Crystallographya:b:c =1:1:0.7057 |
a = 36.7, b = 36.7, c = 25.9, Z = 216; V = 34,884.45 Den(Calc)= 4.89 |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: pseudo ISO |
By Intensity(I/Io): 2.56(1), 1.527(0.7), 1.662(0.6),2.157(0.4), 1.1251(0.3), 3.05(0.3), 4.97(0.2), |
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| Physical Properties of FilipstaditeNone |
Black, Dark brownish gray. |
Opaque |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Pseudo Octohedral - Crystals show an octohedral outline. |
6-6.5 - Orthoclase-Pyrite |
Metallic |
brown |
| Optical Properties of FilipstaditeBiaxial (?) |
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NCalc= 1.98 - from Gladstone-Dale relationship (KC = 0.1999) where Ncalc=Dcalc*KC+1 |
Weak, in shades of dark brownish gray. |
Gray, with amber-orange, brown, or red internal reflections. |
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| Calculated Properties of FilipstaditeBulk Density (Electron Density)=4.52 gm/cc |
note: Specific Gravity of Filipstadite =4.89 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEFilipstadite = 92.73 barns/electron |
U=PEFilipstadite x rElectron Density= 419.07 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Filipstadite is Not Radioactive | Filipstadite Classification07.02.13.01 (07)Multiple Oxides |
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(07.02)(A+ B++)2 X4 Spinel group |
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(07.02.13)Dana Group |
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04.BB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.B - Metal:Oxygen = 3:4 and similar |
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04.BB -With only medium-sized cations |
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| Other Filipstadite InformationNAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) OPTIC PROP.(AntBidBlaNic3) |
Links to other databases for Filipstadite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Filipstadite using: Visit our Advertisers for Filipstadite : 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 Filipstadite Mineral Data : Ask about Filipstadite here : Print or Cut-and-Paste your Filipstadite Specimen Label here :
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