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Quintinite-2H Mineral Data |
General Quintinite-2H Information |
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Mg4Al2(OH)12CO3•4(H2O) | ||
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Molecular Weight = 487.34 gm | ||
Magnesium 19.95 % Mg 33.08 % MgO | |||
Aluminum 11.07 % Al 20.92 % Al2O3 | |||
Hydrogen 4.14 % H 36.97 % H2O | |||
Carbon 2.46 % C 9.03 % CO2 | |||
Oxygen 62.38 % O | |||
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100.00 % 100.00 % = TOTAL OXIDE | |||
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Mg4Al2(OH)12(CO3)•4(H2O) | ||
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Related to caresite-2H, charmarite-2H and charmarite-3T. | ||
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Approved IMA 1995 | ||
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Found in the Jacupiranga mine, S�o Paulo, Brazil. Link to MinDat.org Location Data. | ||
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Named after Quintin Wight (b. 1935), of Ottawa, Ontario, Canada, significant contributor to mineral studies at Mont Saint-Hilaire, and author of The Complete Book of micromounting ( 1993). | ||
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Quintinite-2H + Pronunciation ![]() |
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IMA1992-028 | ||
Quintinite-2H Image | |||
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Quintinite-2H Crystallography |
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a:c = 1:1.43515 | ||
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a = 10.571, c = 15.171, Z = 4; V = 1,468.17 Den(Calc)= 2.20 | ||
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Hexagonal - Trapezohedral H-M Symbol (6 2 2) Space Group: P 6322 | ||
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By Intensity(I/Io): 3.785(1), 7.63(1), 1.825(0.2), | ||
Physical Properties of Quintinite-2H |
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{0001} Perfect | ||
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Colorless, Deep orange red, Orange, Pale brown. | ||
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2.14 | ||
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Transparent | ||
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Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | ||
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2 - Gypsum | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Quintinite-2H |
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CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.047 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2423,KPDmeas= 0.2491,KC= 0.2542 Ncalc = 1.54 - 1.56 |
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Uniaxial (+), w=1.533, e=1.533, bire=0.0000. | ||
Calculated Properties of Quintinite-2H |
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Bulk Density (Electron Density)=2.21 gm/cc note: Specific Gravity of Quintinite-2H =2.14 gm/cc. |
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Fermion Index = 0.02 Boson Index = 0.98 |
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PEQuintinite-2H = 0.90 barns/electron U=PEQuintinite-2H x rElectron Density= 2.00 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Quintinite-2H is Not Radioactive |
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Quintinite-2H Classification |
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16b.06.04.01 (16b)Carbonates - Hydroxyl or Halogen | ||
(16b.06)Dana Type | |||
(16b.06.04)Quintinite - Charmarite Group | |||
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05.DA.40 05 - CARBONATES (NITRATES) | ||
05.D - Carbonates with Additional Anions, with H2O | |||
05.DA -With medium-sized cations | |||
Other Quintinite-2H Information |
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NAME( CanMin, 8/99) PHYS. PROP.(Am.Min.,Vol.83,p1347,1998) OPTIC PROP.(Am.Min.,Vol.83,p1347,1998) | ||
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Links to other databases for Quintinite-2H : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Quintinite-2H using: Visit our Advertisers for Quintinite-2H : Ask about Quintinite-2H here : Print or Cut-and-Paste your Quintinite-2H Specimen Label here :
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