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Sjogrenite Mineral Data |
General Sjogrenite Information |
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Mg6Fe+++2(CO3)(OH)16•4(H2O) | ||
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Molecular Weight = 661.71 gm | ||
Magnesium 22.04 % Mg 36.55 % MgO | |||
Iron 16.88 % Fe 24.13 % Fe2O3 | |||
Hydrogen 3.66 % H 32.67 % H2O | |||
Carbon 1.82 % C 6.65 % CO2 | |||
Oxygen 55.61 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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Mg6Fe3+2(CO3)(OH)16•4(H2O) | ||
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In low-temperature hydrothermal veins in a metamorphosed Fe-Mn orebody (Langban, Sweden) | ||
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Valid Species (Pre-IMA) 1940 | ||
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From Langban and Nordmark, Varmland, Sweden. Link to MinDat.org Location Data. | ||
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Named for Stens Anders Hjalmar Sjogren (1856-1922), Swedish mineralogist, Professor of Mineralogy, University of Stockholm, Stockholm, Sweden. | ||
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Sjogrenite + Pronunciation ![]() |
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Sjoegrenite | ||
Sjogrenite Image | |||
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Sjogrenite Crystallography |
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a:c = 1:5.01445 | ||
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a = 3.113, c = 15.61, Z = 0.25; V = 131.01 Den(Calc)= 2.10 | ||
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Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc | ||
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By Intensity(I/Io): 7.79(1), 3.89(0.8), 1.86(0.4), | ||
Physical Properties of Sjogrenite |
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White, Yellowish, Brownish. | ||
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2.11 | ||
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Transparent | ||
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2.5 - Finger Nail | ||
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Vitreous - Waxy | ||
Optical Properties of Sjogrenite |
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CI meas= 0.03 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2674,KPDmeas= 0.2661,KC= 0.2742 Ncalc = 1.58 |
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Uniaxial (-), e=1.55, w=1.573, bire=0.0230. | ||
Calculated Properties of Sjogrenite |
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Bulk Density (Electron Density)=2.15 gm/cc note: Specific Gravity of Sjogrenite =2.10 gm/cc. |
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Fermion Index = 0.02 Boson Index = 0.98 |
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PESjogrenite = 5.43 barns/electron U=PESjogrenite x rElectron Density= 11.65 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sjogrenite is Not Radioactive |
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Sjogrenite Classification |
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16b.06.01.03 (16b)Carbonates - Hydroxyl or Halogen | ||
(16b.06)Dana Type | |||
(16b.06.01)Sjorgrenite-Hydrotalcite Group (Sojogrenite Subgroup:Hexagonal) | |||
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05.DA.45 05 - CARBONATES (NITRATES) | ||
05.D - Carbonates with Additional Anions, with H2O | |||
05.DA -With medium-sized cations | |||
Other Sjogrenite Information |
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NAME( Athena) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Sjogrenite : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 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 16 - WWW-MINCRYST Search for Sjogrenite using: Visit our Advertisers for Sjogrenite : Ask about Sjogrenite here : Print or Cut-and-Paste your Sjogrenite Specimen Label here :
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