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Ferritungstite Mineral Data + |
General Ferritungstite Information |
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| (K,Ca,Na)(W++++++,Fe+++)2(O,OH)6·(H2O) | |||
| Molecular Weight = 416.40 gm | |||
| Potassium 1.88 % K 2.26 % K2O | |||
| Sodium 0.11 % Na 0.15 % Na2O | |||
| Calcium 0.96 % Ca 1.35 % CaO | |||
| Iron 6.71 % Fe 8.63 % FeO | |||
| Hydrogen 0.68 % H 6.06 % H2O | |||
| Tungsten 66.23 % W 83.52 % WO3 | |||
| Oxygen 23.44 % O | |||
| ______ ______ | |||
| 100.00 % 101.96 % = TOTAL OXIDE | |||
| K0.2Ca0.1Na0.02W1.5Fe2+0.5O4.7(H2O)1.4 | |||
| An alteration coating on and replacing primary tungsten minerals. | |||
| Valid Species (Pre-IMA) 1911 | |||
| Germania tungsten mine, Deer Trail district, Fruitland, Stevens County, Washington, USA. Link to MinDat.org Location Data. | |||
| Named for FERRIc iron and TUNGsten in its composition. | |||
| ICSD 79158 | |||
| PDF 11-331 | |||
Ferritungstite Image | |||
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Ferritungstite Crystallography |
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| a = 10.352, Z = 8; V = 1,109.36 Den(Calc)= 4.99 | |||
| Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m | |||
| By Intensity(I/Io): 2.966(1), 5.94(1), 3.1(0.9), | |||
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Physical Properties of Ferritungstite |
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| Yellow, Brownish yellow. | |||
| 5.02 - 5.2, Average = 5.1 | |||
| Translucent | |||
| Aggregates - Made of numerous individual crystals or clusters. | |||
| Octahedral Crystals - Occurs as octahedral shaped crystals. | |||
| Rosette - Bundled tabular aggregates resembling rose flower petals. | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| light yellow | |||
Optical Properties of Ferritungstite |
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| CI meas= -0.171 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.199 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2244,KPDmeas= 0.2192,KC= 0.1872 |
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| Isotropic, n=2.09-2.15. | |||
Calculated Properties of Ferritungstite |
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relectron=4.46 gm/cc |
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| Fermion Index = 0.09612 Boson Index = 0.90388 |
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PEFerritungstite = 821.78 barns/electron |
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| GRapi = 23.64 (Gamma Ray American Petroleum Institute Units) Estimated Radioactivity from Ferritungstite |
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Ferritungstite Classification |
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| 4.5.5.1 (4)Simple Oxides | |||
| (4.5)with a cation charge of 6+ (A++++++ O3) | |||
| (4.5.5)Dana Group | |||
| IV/C.20-10 IV - Oxides | |||
| IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds) | |||
| IV/C.20 - Ferritungstite series | |||
Other Ferritungstite Information |
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| NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) | |||
| Links to other databases for Ferritungstite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Ferritungstite using: Visit our Advertisers for Ferritungstite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Ferritungstite Mineral Data : Ask about Ferritungstite here : Print or Cut-and-Paste your Ferritungstite Specimen Label here :
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