Kamaishilite Mineral Data + Say KAMAISHILITE


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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.
 

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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: TetragonalSpace 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 Diaphaniety: Diaphaniety: 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
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:

relectron=2.83 gm/cc
note: rKamaishilite =2.83 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00507
Boson Index = 0.99493
Help on Photoelectric: Photoelectric:

PEKamaishilite = 4.28 barns/electron
U=PEKamaishilite x relectron= 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: 76.2.3.6 (76)Tectosilicate Al-Si Framework
  (76.2)Feldspathoids and related species
  (76.2.3)Sodalite group
 
76.2.3.1 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m
 
76.2.3.2 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m
 
76.2.3.3 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m
 
76.2.3.4 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m
 
76.2.3.5 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m
 
76.2.3.6 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
 
76.2.3.7 Tugtupite Na4AlBeSi4O12Cl I 4 4
 
76.2.3.8 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2
Help on  Strunz Class: Strunz Class: VIII/J.11-60 VIII - Silicates
  VIII/J - Tectosilicates (network) with anions unfamiliar to the tetraheders
  VIII/J.11 - Sodalite group, Tsaregorodtsevite - Wadalite series
 
VIII/J.11-05 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2
 
VIII/J.11-10 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m
 
VIII/J.11-20 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m
 
VIII/J.11-30 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m
 
VIII/J.11-40 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m
 
VIII/J.11-50 Tugtupite Na4AlBeSi4O12Cl I 4 4
 
VIII/J.11-60 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
 
VIII/J.11-70 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m
 
VIII/J.11-80 Wadalite Ca6Al5Si2O16Cl3 I 43d 4 3m
 

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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Kamaishilite

Ca2Al2SiO6(OH)2
Dana No: 76.2.3.6 Strunz No: VIII/J.11-60
Locality:

 

Notes:

 

 
   
 
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