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Bustamite Mineral Data |
General Bustamite Information |
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(Mn,Ca)3Si3O9 | ||
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Molecular Weight = 381.92 gm | ||
Calcium 7.87 % Ca 11.01 % CaO | |||
Manganese 32.37 % Mn 41.79 % MnO | |||
Silicon 22.06 % Si 47.20 % SiO2 | |||
Oxygen 37.70 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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Mn2+2.25Ca0.75Si3O9 | ||
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In manganese ores formed by metamorphism of manganese-bearing sediments with attendant metasomatism. | ||
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Valid Species (Pre-IMA) 1826 | ||
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"Type" material, from Tetela de Ocampo, Hidalgo, Mexico, is a mixture. Link to MinDat.org Location Data. | ||
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For General Anastasio Bustamente (1780-1853), of Mexico. | ||
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Bustamite + Pronunciation ![]() |
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ICSD 34164 | ||
PDF 44-1455 | |||
Bustamite Image | |||
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Bustamite Crystallography |
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a:b:c =2.1532:1:1.9275 | ||
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a = 15.46, b = 7.18, c = 13.84, Z = 8; alpha = 89.567°, beta = 94.883°, gamma = 102.783° V = 1,492.72 Den(Calc)= 3.40 | ||
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Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1 | ||
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By Intensity(I/Io): 2.872(1), 3.195(0.7), 2.982(0.6), | ||
Physical Properties of Bustamite |
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{100} Perfect, {110} Good, {110} Good | ||
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Brown red, Light pink, Pink. | ||
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3.32 - 3.43, Average = 3.37 | ||
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Transparent to Translucent | ||
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5.5-6.5 - Knife Blade-Pyrite | ||
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Fluorescent, Long UV=pink red. | ||
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Vitreous (Glassy) | ||
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white | ||
Optical Properties of Bustamite |
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CI meas= 0.016 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.023 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1989,KPDmeas= 0.2003,KC= 0.2036 Ncalc = 1.68 - 1.7 |
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Biaxial (-), a=1.64-1.695, b=1.651-1.708, g=1.653-1.71, bire=0.0130-0.0150 | ||
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colorless. | ||
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colorless. | ||
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colorless. | ||
Calculated Properties of Bustamite |
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Bulk Density (Electron Density)=3.27 gm/cc note: Specific Gravity of Bustamite =3.38 gm/cc. |
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Fermion Index = 0.01 Boson Index = 0.99 |
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PEBustamite = 10.09 barns/electron U=PEBustamite x rElectron Density= 33.04 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bustamite is Not Radioactive |
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Bustamite Classification |
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65.02.01.02 (65)Inosilicate Single-Width Unbranched Chains, W=1 | ||
(65.02)with chains P=3 | |||
(65.02.01)Wollastonite group | |||
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09.DG.05 09 - SILICATES (Germanates) | ||
09.D - Inosilicates* Structural terminology according to Liebau (1985) | |||
09.DG -Inosilicates with 3-periodic single and multiple chains | |||
Other Bustamite Information |
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NAME( AntBidBlaNic2) 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 Bustamite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Franklin Minerals(Dunn) 6 - Franklin Minerals(Palache) 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineral and Gemstone Kingdom 14 - Mineralienatlas (Deutsch) 15 - Online Mineral Museum 16 - QUT Mineral Atlas 17 - Ruff.Info 18 - University of Colorado - Mineral Structure Data 19 - WWW-MINCRYST Search for Bustamite using: Visit our Advertisers for Bustamite : Ask about Bustamite here : Print or Cut-and-Paste your Bustamite Specimen Label here :
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