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Charmarite-2H Mineral Data |
General Charmarite-2H Information |
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Mn++4Al2(CO3)(OH)12•3(H2O) | |
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Molecular Weight = 591.86 gm | |
Manganese 37.13 % Mn 47.94 % MnO | ||
Aluminum 9.12 % Al 17.23 % Al2O3 | ||
Hydrogen 3.07 % H 27.39 % H2O | ||
Carbon 2.03 % C 7.44 % CO2 | ||
Oxygen 48.66 % O | ||
______ ______ | ||
100.00 % 100.00 % = TOTAL OXIDE | ||
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Mn2+4Al2(CO3)(OH)12•3(H2O) | |
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In silicate and carbonate cavities and in pegmatites in nepheline syenite. The Mn-dominant analogue of caresite and quintinite. | |
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Approved IMA 1995 | |
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Mt. St.-Hilaire, QUE, Canada. Link to MinDat.org Location Data. | |
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Named for Charles (1917-) and Marcelle (1918-) Weber, amateur mineralogist of Guilford, CT, who contributed extensively to the knowledge of Mt. St.-Hilaire and also found the minera l. | |
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IMA1992-026 | |
Charmarite-2H Crystallography |
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a:c = 1:1.3746 | |
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a = 10.985, c = 15.1, Z = 4; V = 1,578.00 Den(Calc)= 2.49 | |
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Hexagonal - Trapezohedral H-M Symbol (6 2 2) Space Group: P 6322 | |
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By Intensity(I/Io): 7.53(1), 3.768(0.6), 2.578(0.5), | |
Physical Properties of Charmarite-2H |
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Orange brown, Pale brown, Pale blue, Colorless. | |
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2.5 | |
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Transparent | |
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Tabular - Form dimensions are thin in one direction. | |
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2.5 - Finger Nail | |
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Vitreous (Glassy) | |
Optical Properties of Charmarite-2H |
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CI meas= 0.051 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.047 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2277,KPDmeas= 0.2268,KC= 0.2389 Ncalc = 1.59 - 1.6 |
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Uniaxial (-), e=1.547, w=1.587, bire=0.0400. | |
Calculated Properties of Charmarite-2H |
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Bulk Density (Electron Density)=2.47 gm/cc note: Specific Gravity of Charmarite-2H =2.49 gm/cc. |
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Fermion Index = 0.0004613895 Boson Index = 0.9995386105 |
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PECharmarite-2H = 9.61 barns/electron U=PECharmarite-2H x rElectron Density= 23.78 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Charmarite-2H is Not Radioactive |
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Charmarite-2H Classification |
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16b.06.04.04 (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 Charmarite-2H Information |
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NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.83,p1347,1998) OPTIC PROP.(Dana8) | |
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Links to other databases for Charmarite-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 Charmarite-2H using: Visit our Advertisers for Charmarite-2H : Ask about Charmarite-2H here : Print or Cut-and-Paste your Charmarite-2H Specimen Label here :
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