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Brucite Mineral Data + |
General Brucite Information |
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| Mg(OH)2 | |||
| Molecular Weight = 58.32 gm | |||
| Magnesium 41.68 % Mg 69.11 % MgO | |||
| Hydrogen 3.46 % H 30.89 % H2O | |||
| Oxygen 54.87 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mg(OH)2 | |||
| It occurs in serpentine, in chlorite or dolomitic schists, or in crystalline limestones as an alteration product of periclase. | |||
| Valid Species (Pre-IMA) 1824 | |||
| New Jersey, USA serpentine. Asbestos mines of Asbestos and Black Lake in Quebec, Canada. crystalline limestones at Crestmore, California, USA. Link to MinDat.org Location Data. | |||
| Named after the American mineralogist, A. Bruce (1777-1818). | |||
| ICSD 64722 | |||
| Nemalite | |||
| PDF 7-239 | |||
Brucite Image | |||
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Brucite Crystallography |
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| a:c = 1:1.51541 | |||
| a = 3.147, c = 4.769, Z = 1; V = 40.90 Den(Calc)= 2.37 | |||
| Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1 | |||
| By Intensity(I/Io): 2.365(1), 4.77(0.9), 1.794(0.55), | |||
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Physical Properties of Brucite |
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| [0001] Perfect | |||
| Blue, Gray, Gray blue, Yellow, White. | |||
| 2.39 - 2.4, Average = 2.39 | |||
| Transparent | |||
| Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern. | |||
| Fibrous - Crystals made up of fibers. | |||
| Massive - Lamellar - Distinctly foliated fine-grained forms. | |||
| Massive - Uniformly indistinguishable crystals forming large masses. | |||
| 2.5-3 - Finger Nail-Calcite | |||
| None. | |||
| Vitreous - Pearly | |||
| Nonmagnetic | |||
| white | |||
Optical Properties of Brucite |
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| CI meas= 0.022 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.011 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2405,KPDmeas= 0.238,KC= 0.2432 |
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| Uniaxial (+), w=1.56, e=1.58, bire=0.0200. | |||
Calculated Properties of Brucite |
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relectron=2.44 gm/cc |
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| Fermion Index = 0.04194 Boson Index = 0.95806 |
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PEBrucite = 1.01 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Brucite is Not Radioactive |
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Brucite Classification |
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| 6.2.1.1 (6)Hydroxides and Oxides Containing Hydroxyl | |||
| (6.2)where X++ (OH)2 | |||
| (6.2.1)Brucite group (Rhombohedral: P3¯m1) | |||
| IV/F.03-10 IV - Oxides | |||
| IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure | |||
| IV/F.03 - Brucite series | |||
Other Brucite Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Mason68) | |||
| Links to other databases for Brucite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 - Franklin Minerals(Dunn) 8 -Google Images 9 -Google Scholar 10 -Handbook of Mineralogy (UofA) 11 - HyperPhysics 12 -MinDAT 13 -MinMax(Deutsch) 14 -MinMax(English) 15 -Mineralienatlas (Deutsch) 16 - Minerals of Wisconsin 17 -QUT Mineral Atlas 18 - Scandinavian mineral gallery 19 -University of Colorado - Mineral Structure Data 20 - University of Manchester - Mineral Structure 21 - WWW-MINCRYST 22 -École des Mines de Paris Search for Brucite using: Visit our Advertisers for Brucite : Translate Brucite Mineral Data : Ask about Brucite here : Print or Cut-and-Paste your Brucite Specimen Label here :
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