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Franklinphilite Mineral Data |
General Franklinphilite Information |
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(K,Na)4(Mn++,Mg,Zn)48(Si,Al)72(O,OH)216•6(H2O) | ||
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Molecular Weight = 8,207.63 gm | ||
Potassium 1.24 % K 1.49 % K2O | |||
Sodium 0.31 % Na 0.42 % Na2O | |||
Magnesium 3.91 % Mg 6.48 % MgO | |||
Manganese 17.47 % Mn 22.56 % MnO | |||
Aluminum 1.91 % Al 3.60 % Al2O3 | |||
Zinc 4.78 % Zn 5.95 % ZnO | |||
Iron 5.51 % Fe 7.88 % Fe2O3 | |||
Silicon 20.81 % Si 44.51 % SiO2 | |||
Hydrogen 0.80 % H 7.11 % H2O | |||
Oxygen 43.28 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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K2.6Na1.1Mn2+26.1Mg13.2Zn6Fe3+2.7Si60.8Al5.8Fe3+5.4O163.2(OH)52.8�6(H2O) | ||
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Metamorphosed, weathered zinc deposit. The manganese analog of stipnomelane. | ||
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Approved IMA 1992 | ||
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Franklin mine, Sussex County, New Jersey. Link to MinDat.org Location Data. | ||
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Named after its locality and from the Greek philos = 'friend.' The 'friends of Franklin' are those scientific investigators who helped study the unique mineralogy and geology of th is deposit. | ||
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Franklinphilite + Pronunciation ![]() |
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IMA1990-050 | ||
Franklinphilite Image | |||
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Franklinphilite Crystallography |
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a:b:c =0.5775:1:3.8253 | ||
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a = 5.521, b = 9.56, c = 36.57, Z = 0.375; alpha = 90°, beta = 90°, gamma = 90° V = 1,930.19 Den(Calc)= 2.65 | ||
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Triclinic Space Group: pseudo-HEX P1 or P1 | ||
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By Intensity(I/Io): 12.3(1), 2.583(0.4), 2.737(0.3), | ||
Physical Properties of Franklinphilite |
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{001} Perfect | ||
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Dark brown, Black. | ||
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2.6 - 2.8, Average = 2.7 | ||
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Subtranslucent to opaque | ||
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Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
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Platy - Sheet forms (e.g. micas). | ||
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Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | ||
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4 - Fluorite | ||
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Non-fluorescent. | ||
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Vitreous - Resinous | ||
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light brown | ||
Optical Properties of Franklinphilite |
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CI meas= 0.038 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.02 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2152,KPDmeas= 0.2112,KC= 0.2196 Ncalc = 1.57 - 1.61 |
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Biaxial (-), a=1.545, b=1.583, g=1.583, bire=0.0380, 2V(Calc)=0, 2V(Meas)=10. | ||
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yellow. | ||
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deep brown. | ||
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deep brown. | ||
Calculated Properties of Franklinphilite |
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Bulk Density (Electron Density)=2.60 gm/cc note: Specific Gravity of Franklinphilite =2.65 gm/cc. |
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Fermion Index = 0.01 Boson Index = 0.99 |
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PEFranklinphilite = 9.46 barns/electron U=PEFranklinphilite x relectron= 24.61 barns/cc. |
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GRapi = 17.54 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Franklinphilite |
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Franklinphilite Classification |
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74.01.01.03 (74)Phyllosilicate Modulated Layers | ||
(74.01)with joined islands | |||
(74.01.01)Stilpnomelane group | |||
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09.EG.40 09 - SILICATES (Germanates) | ||
09.E - Phyllosilicates | |||
09.EG -Double nets with 6-membered and larger rings | |||
Other Franklinphilite Information |
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NAME( MinRec) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(MinRec) | ||
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Links to other databases for Franklinphilite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Franklin Minerals(Dunn) 6 - GeoScienceWorld 7 - Google Images 8 - Google Scholar 9 - Handbook of Mineralogy (MinSocAm) 10 - Handbook of Mineralogy (UofA) 11 - MinDAT 12 - Mineralienatlas (Deutsch) 13 - Online Mineral Museum 14 - QUT Mineral Atlas 15 - Ruff.Info Search for Franklinphilite using: Visit our Advertisers for Franklinphilite : Ask about Franklinphilite here : Print or Cut-and-Paste your Franklinphilite Specimen Label here :
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