Oyelite Mineral Data

Oyelite Mineral Data
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General Oyelite Information

Help on Chemical Formula: Chemical Formula: Ca10B2Si8O29•12(H2O)
Help on Composition: Composition: Molecular Weight = 1,327.25 gm
   Calcium   30.20 %  Ca   42.25 % CaO
   Silicon   16.93 %  Si   36.22 % SiO2
   Boron      1.63 %  B     5.25 % B2O3
   Hydrogen   1.82 %  H    16.29 % H2O
   Oxygen    49.42 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca10B2Si8O29•12(H2O)
Help on Environment: Environment: Metamorphosed limestones. In a vein cutting a spurrite zone of a spurrite-gehlenite skarn.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Fuka, Bichu, Okayama Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Jiro Oye (1900-1968), professor of mineralogy, Okayama University, Japan.
Help on Name Pronunciation: Name Pronunciation: Oyelite Say OYELITE
 

Oyelite Image

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Oyelite   Bultfonteinite

Comments: White encrustation of oyelite covering brownish botryoidal bultfonteinite.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 2 x 4 cm.
© John Veevaert
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Oyelite

Comments: Tufts of white acicular millimetric oyelite crystals on matrix.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 2 cm.
© Sandro Maggia/Minernet.it

Oyelite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.5517:1:2.822
Help on Cell Dimensions: Cell Dimensions: a = 11.25, b = 7.25, c = 20.46, Z = 2; V = 1,668.77 Den(Calc)= 2.64
Help on Crystal System: Crystal System: OrthorhombicSpace Group: B****
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.23(1), 2.917(0.6), 3.411(0.25),
 

Physical Properties of Oyelite

Help on Color: Color: White.
Help on Density: Density: 2.62
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Oyelite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2299,KPDmeas= 0.2317,KC= 0.2307
Ncalc = 1.6 - 1.61
Help on Optical Data: Optical Data: Biaxial (+), a=1.602, b=1.606, g=1.613, bire=0.0110
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Oyelite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.68 gm/cc
note: Specific Gravity of Oyelite =2.64 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEOyelite = 4.35 barns/electron
U=PEOyelite x rElectron Density= 11.68 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Oyelite is Not Radioactive
 

Oyelite Classification
Help on Dana Class: Dana Class: 72.03.02.08 (72)Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
  (72.03)with 3-, 4-, or 5-membered rings and 8-membered rings
  (72.03.02)Tobermorite group (5- & 8-membered rings)
 
72.03.02.01 Tobermorite Ca5Si6O16(OH)2•4(H2O) C 2221 2 2 2
 
72.03.02.02 Clinotobermorite Ca5Si6(O,OH)18•5(H2O) Cc,C 2/c Mono
 
72.03.02.03 Plombierite Ca5H2Si6O18•6H2O B11b 2
 
72.03.02.04 Riversideite Ca5Si6O16(OH)2•2(H2O) B2212 2 2 2
 
72.03.02.05 Okenite Ca3[Si6O15]•6(H2O) P1 or P1 Tri
 
72.03.02.06 Tacharanite Ca12Al2Si18O33(OH)36 A centered Mono
 
72.03.02.07 Nekoite Ca3Si6O15•7(H2O) P1 1
 
72.03.02.08 Oyelite Ca10B2Si8O29•12(H2O) B**** Ortho
Help on Strunz Class: Strunz Class: 09.HA.80 09 - SILICATES (Germanates)
  09.H - Unclassified Silicates
  09.HA -With alkali and alkali-earth Elements
 
09.HA.80 Oyelite Ca10B2Si8O29•12(H2O) B**** Ortho
 

Other Oyelite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Oyelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Oyelite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Oyelite Specimen Label here :

Oyelite

Ca10B2Si8O29•12(H2O)
Dana No: 72.03.02.08 Strunz No: 09.HA.80
Locality:

 

Notes: