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Bakerite Mineral Data

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General Bakerite Information

Help on Chemical  Formula: Chemical Formula: Ca4B4(BO4)(SiO4)3(OH)3•(H2O)
Help on Composition: Composition: 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
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4B4(BO4)(SiO4)3(OH)3•(H2O)
Help on Environment: Environment: Occurs as irregular veins in altered volcanic rock (Baker Canyon, Death Valley, California, USA).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1903
Help on Locality: Locality: Corkscrew mine, Corkscrew Canyon, Death Valley, Inyo Co. California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Richard C. Baker, of Nutfield, Surrey, England, Mining Director of the Pacific Coast Borax Co., who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Bakerite Say BAKERITE
 

Bakerite Image

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  Bakerite

Comments: Porcelain-like, massive bakerite.
Location: Twenty Mule Canyon, Death Valley, Inyo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Bakerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6358:1:1.2664
Help on Cell Dimensions: Cell Dimensions: a = 4.85, b = 7.627, c = 9.659, Z = 1; beta = 90.255° V = 357.29 Den(Calc)= 2.90
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.11(1), 2.236(0.6), 2.85(0.6),
 

Physical Properties of Bakerite

Help on Color: Color: Colorless, White.
Help on Density: Density: 2.7 - 2.9, Average = 2.8
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Bakerite

Help on Gladstone-Dale: Gladstone-Dale: 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
Help on Optical Data: Optical Data: Biaxial (-), a=1.624, b=1.635, g=1.654, bire=0.0300
 

Calculated Properties of Bakerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.90 gm/cc
note: Specific Gravity of Bakerite =2.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEBakerite = 3.78 barns/electron
U=PEBakerite x rElectron Density= 10.97 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bakerite is Not Radioactive
 

Bakerite Classification

Help on  Dana Class: Dana Class: 54.02.01b.01 (54)Nesosilicate Borosilicates and Some Beryllosilicates
  (54.02)with B in [4] coordination
  (54.02.01b)Datolite group (Homilite series)
 
54.02.01b.01 Bakerite Ca4B4(BO4)(SiO4)3(OH)3•(H2O) P 21/c 2/m
 
54.02.01b.02 Gadolinite-(Ce) (Ce,La,Nd,Y)2FeBe2Si2O10 P 21/c 2/m
 
54.02.01b.03 Gadolinite-(Y) Y2FeBe2Si2O10 P 21/a 2/m
 
54.02.01b.04 Calciogadolinite? CaREE(Fe)Be2Si2O10 P 21/a 2/m
 
54.02.01b.05 Homilite Ca2(Fe,Mg)B2Si2O10 P 21/a 2/m
 
54.02.01b.06 Minasgeraisite-(Y) CaY2Be2Si2O10 P 21/a 2/m
Help on  Strunz Class: Strunz Class: 09.AJ.20 09 - SILICATES (Germanates)
  09.A - Nesosilicates
  09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra,
 
09.AJ.20 Bakerite Ca4B4(BO4)(SiO4)3(OH)3•(H2O) P 21/c 2/m
 
09.AJ.20 Calcybeborosilite-(Y)! (REE,Ca)2[](B,Be)2(SiO4)2(OH,O)2 P 21/a 2/m
 
09.AJ.20 Calciogadolinite? CaREE(Fe)Be2Si2O10 P 21/a 2/m
 
09.AJ.20 Datolite CaBSiO4(OH) P 21/c 2/m
 
09.AJ.20 Hingganite-(Yb) (Yb,Y)2([])Be2Si2O8(OH)2 P 21/a 2/m
 
09.AJ.20 Homilite Ca2(Fe,Mg)B2Si2O10 P 21/a 2/m
 
09.AJ.20 Gadolinite-(Ce) (Ce,La,Nd,Y)2FeBe2Si2O10 P 21/c 2/m
 
09.AJ.20 Gadolinite-(Y) Y2FeBe2Si2O10 P 21/a 2/m
 
09.AJ.20 Hingganite-(Ce) (Ce,Ca)2([],Fe)Be2Si2O8[(OH),O]2 P 21/a 2/m
 
09.AJ.20 Hingganite-(Y) Y2([])Be2Si2O8(OH)2 P 21/a 2/m
 
09.AJ.20 Melanocerite-(Ce) (Ce,Th,Ca)5(Si,B)3O12(OH,F)•n(H2O)(?) Unk (HEX-R) Trig
 
09.AJ.20 Minasgeraisite-(Y) CaY2Be2Si2O10 P 21/a 2/m
 

Other Bakerite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990, AmMin, v 89, p 767) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: 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

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Bakerite

Ca4B4(BO4)(SiO4)3(OH)3•(H2O)
Dana No: 54.02.01b.01 Strunz No: 09.AJ.20
Locality:

 

Notes:

 

 
   
 


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