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Bakerite Mineral Data |
General Bakerite Information |
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Ca4B4(BO4)(SiO4)3(OH)3•(H2O) | ||
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Molecular Weight = 623.65 gm | ||
Calcium 25.71 % Ca 35.97 % CaO | |||
Silicon 13.51 % Si 28.90 % SiO2 | |||
Boron 8.67 % B 27.91 % B2O3 | |||
Hydrogen 0.81 % H 7.22 % H2O | |||
Oxygen 51.31 % O | |||
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100.00 % 100.00 % = TOTAL OXIDE | |||
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Ca4B4(BO4)(SiO4)3(OH)3•(H2O) | ||
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Occurs as irregular veins in altered volcanic rock (Baker Canyon, Death Valley, California, USA). | ||
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Valid Species (Pre-IMA) 1903 | ||
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Corkscrew mine, Corkscrew Canyon, Death Valley, Inyo Co. California. Link to MinDat.org Location Data. | ||
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For Richard C. Baker, of Nutfield, Surrey, England, Mining Director of the Pacific Coast Borax Co., who discovered the mineral. | ||
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Bakerite ![]() |
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Bakerite Image | |||
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Bakerite Crystallography |
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a:b:c =0.6358:1:1.2664 | ||
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a = 4.85, b = 7.627, c = 9.659, Z = 1; beta = 90.255° V = 357.29 Den(Calc)= 2.90 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c | ||
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By Intensity(I/Io): 3.11(1), 2.236(0.6), 2.85(0.6), | ||
Physical Properties of Bakerite |
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Colorless, White. | ||
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2.7 - 2.9, Average = 2.8 | ||
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Transparent | ||
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Nodular - Tuberose forms having irregular protuberances over the surface. | ||
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4.5 - Between Fluorite and Apatite | ||
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Non-fluorescent. | ||
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Vitreous (Glassy) | ||
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Nonmagnetic | ||
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white | ||
Optical Properties of Bakerite |
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CI meas= -0.034 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2199,KPDmeas= 0.2277,KC= 0.2202 Ncalc = 1.59 - 1.64 |
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Biaxial (-), a=1.624, b=1.635, g=1.654, bire=0.0300 | ||
Calculated Properties of Bakerite |
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Bulk Density (Electron Density)=2.90 gm/cc note: Specific Gravity of Bakerite =2.90 gm/cc. |
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Fermion Index = 0.02 Boson Index = 0.98 |
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PEBakerite = 3.78 barns/electron U=PEBakerite x rElectron Density= 10.97 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bakerite is Not Radioactive |
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Bakerite Classification |
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54.02.01b.01 (54)Nesosilicate Borosilicates and Some Beryllosilicates | ||
(54.02)with B in [4] coordination | |||
(54.02.01b)Datolite group (Homilite series) | |||
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09.AJ.20 09 - SILICATES (Germanates) | ||
09.A - Nesosilicates | |||
09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, | |||
Other Bakerite Information |
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NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990, AmMin, v 89, p 767) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Bakerite : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - Franklin Minerals(Dunn) 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineralienatlas (Deutsch) 14 - Online Mineral Museum 15 - QUT Mineral Atlas 16 - Ruff.Info Search for Bakerite using: Visit our Advertisers for Bakerite : Ask about Bakerite here : Print or Cut-and-Paste your Bakerite Specimen Label here :
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