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Bustamite Mineral Data + |
General Bustamite Information |
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| (Mn,Ca)3Si3O9 | |||
| 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 | |||
| Mn2+2.25Ca0.75Si3O9 | |||
| In manganese ores formed by metamorphism of manganese-bearing sediments with attendant metasomatism. | |||
| Valid Species (Pre-IMA) 1826 | |||
| "Type" material, from Tetela de Ocampo, Hidalgo, Mexico, is a mixture. Link to MinDat.org Location Data. | |||
| For General Anastasio Bustamente (1780-1853), of Mexico. | |||
| 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 | |||
| 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 | |||
| Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | |||
| By Intensity(I/Io): 2.872(1), 3.195(0.7), 2.982(0.6), | |||
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Mouse |
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Physical Properties of Bustamite |
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| [100] Perfect, [110] Good, [110] Good | |||
| Brown red, Light pink, Pink. | |||
| 3.32 - 3.43, Average = 3.37 | |||
| Transparent to Translucent | |||
| 5.5-6.5 - Knife Blade-Pyrite | |||
| Fluorescent. | |||
| Vitreous (Glassy) | |||
| 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 |
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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 | |||
| colorless. | |||
| colorless. | |||
| colorless. | |||
Calculated Properties of Bustamite |
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relectron=3.27 gm/cc |
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| Fermion Index = 0.01058 Boson Index = 0.98942 |
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PEBustamite = 10.09 barns/electron |
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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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| 65.2.1.2 (65)Inosilicate Single-Width Unbranched Chains, W=1 | |||
| (65.2)with chains P=3 | |||
| (65.2.1)Wollastonite group | |||
| VIII/F.18-40 VIII - Silicates | |||
| VIII/F - Inosilicates (chain and band) Triplet chains [Si3O9]6- | |||
| VIII/F.18 - Wollastonite-2M - Foshagite series | |||
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) | |||
| Links to other databases for Bustamite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 - Franklin Minerals(Dunn) 6 - Franklin Minerals(Palache) 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (MinSocAm) 10 -Handbook of Mineralogy (UofA) 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 - Mineral and Gemstone Kingdom 15 -Mineralienatlas (Deutsch) 16 -QUT Mineral Atlas 17 -University of Colorado - Mineral Structure Data 18 - WWW-MINCRYST 19 -École des Mines de Paris Search for Bustamite using: Visit our Advertisers for Bustamite : Translate Bustamite Mineral Data : Ask about Bustamite here : Print or Cut-and-Paste your Bustamite Specimen Label here :
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