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Kamaishilite Mineral Data

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General Kamaishilite Information

Help on Chemical  Formula: Chemical Formula: Ca2Al2SiO6(OH)2
Help on Composition: Composition: Molecular Weight = 292.22 gm
   Calcium   27.43 %  Ca   38.38 % CaO
   Aluminum  18.47 %  Al   34.89 % Al2O3
   Silicon    9.61 %  Si   20.56 % SiO2
   Hydrogen   0.69 %  H     6.17 % H2O
   Oxygen    43.80 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Al2SiO6(OH)2
Help on Environment: Environment: Vesuvianite skarn. Dimorphous with bicchulite.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Kamaishi mine, Kamaishi, Iwate Prefecture, Honshu, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Kamaishilite + Pronunciation Say KAMAISHILITE
 

Kamaishilite Image

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  Kamaishilite

Comments: Colorless crystalline massive kamaishilite.
Location: Kamaishi mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan. Scale: See Image.
© Rruff Database

Kamaishilite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.99096
Help on Cell Dimensions: Cell Dimensions: a = 8.85, c = 8.77, Z = 4; V = 686.89 Den(Calc)= 2.83
Help on Crystal System: Crystal System: Tetragonal Space Group: I-lattice
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.607(1), 2.799(0.85), 2.777(0.4),
 

Physical Properties of Kamaishilite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Density: Density: 2.83
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Kamaishilite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2223,KPDmeas= 0.2223,KC= 0.2166
Ncalc = 1.61
Help on Optical Data: Optical Data: Uniaxial (-), e=1.629, w=1.629, bire=0.0000.
 

Calculated Properties of Kamaishilite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.83 gm/cc
note: Specific Gravity of Kamaishilite =2.83 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0050700347
Boson Index = 0.9949299653
Help on Photoelectric: Photoelectric: PEKamaishilite = 4.28 barns/electron
U=PEKamaishilite x rElectron Density= 12.10 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kamaishilite is Not Radioactive
 

Kamaishilite Classification

Help on  Dana Class: Dana Class: 76.02.03.06 (76)Tectosilicate Al-Si Framework
  (76.02)Feldspathoids and related species
  (76.02.03)Sodalite group
 
76.02.03.01 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m
 
76.02.03.02 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m
 
76.02.03.03 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m
 
76.02.03.04 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m
 
76.02.03.05 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m
 
76.02.03.06 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
 
76.02.03.07 Tugtupite Na4AlBeSi4O12Cl I 4 4
 
76.02.03.08 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2
Help on  Strunz Class: Strunz Class: 09.FB.10 09 - SILICATES (Germanates)
  09.F - Tektosilicates without Zeolitic H2O
  09.FB -Tektosilicates with additional anions
 
09.FB.10 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m
 
09.FB.10 Danalite Fe4Be3(SiO4)3S P 43n 4 3m
 
09.FB.10 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m
 
09.FB.10 Genthelvite Zn4Be3(SiO4)3S P 43n 4 3m
 
09.FB.10 Helvite Mn4Be3(SiO4)3S P 43n 4 3m
 
09.FB.10 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m
 
09.FB.10 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
 
09.FB.10 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m
 
09.FB.10 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m
 
09.FB.10 Tugtupite Na4AlBeSi4O12Cl I 4 4
 
09.FB.10 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2
 

Other Kamaishilite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Kamaishilite :
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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Kamaishilite

Ca2Al2SiO6(OH)2
Dana No: 76.02.03.06 Strunz No: 09.FB.10
Locality:

 

Notes:

 

 
   
 


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