Canasite Mineral Data


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General Canasite Information
Help on Chemical Formula: Chemical Formula: (Na,K)6Ca5Si12O30(OH,F)4
Help on Composition: Composition: Molecular Weight = 1,257.57 gm
   Potassium   6.22 %  K     7.49 % K2O
   Sodium      7.31 %  Na    9.86 % Na2O
   Calcium    15.93 %  Ca   22.30 % CaO
   Silicon    26.80 %  Si   57.33 % SiO2
   Hydrogen    0.24 %  H     2.15 % H2O
   Oxygen     41.98 %  O
   Fluorine    1.51 %  F     1.51 % F
                -   %  F    -0.64 % -O=F2
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4K2Ca5Si12O30(OH)3F
Help on Environment: Environment: In pegmatites in a differentiated alkalic massif (Khibiny massif, Russia); in charoitic rocks (Murun massif, Russia).
Help on IMA Status: IMA Status: Approved IMA 1959
Help on Locality: Locality: On Mts. Yukspor and Rasvumshorr, Khibiny massif, Kola Peninsula, and in the Murun massif, southwest of Olekminsk, Yakutia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For calcium, sodium, natrium, and silicon in the chemical composition.
Help on Synonym: Synonym: ICSD 20109
  PDF 13-553
 

Canasite Image

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Canasite

Comments: Yellow translucent canasite grain with nepheline.
Location: Kirovskii Mine, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Canasite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.6068:1:1.7406
Help on Cell Dimensions: Cell Dimensions: a = 18.9, b = 7.25, c = 12.62, Z = 2; beta = 112° V = 1,603.34 Den(Calc)= 2.60
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.08(1), 1.641(0.8), 2.907(0.8),
 

Physical Properties of Canasite

Help on Cleavage: Cleavage: [???] Perfect
Help on Color: Color: Brownish yellow, Green yellow, Light green.
Help on Density: Density: 2.707
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Canasite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.042 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2071,KPDmeas= 0.1989,KC= 0.2075
Help on Optical Data: Optical Data: Biaxial (-), a=1.534, b=1.538, g=1.543, bire=0.0090, 2V(Calc)=84, 2V(Meas)=58.
 

Calculated Properties of Canasite

Help on Electron Density: Electron Density:

relectron=2.59 gm/cc
note: rCanasite =2.60 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.01293
Boson Index = 0.98707
Help on Photoelectric: Photoelectric:

PECanasite = 3.73 barns/electron
U=PECanasite x relectron= 9.66 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 89.32 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Canasite - barely detectable

 

Canasite Classification
Help on Dana Class: Dana Class: 78.5.4.1 (78)Unclassified silicates
  (78.5)possible phyllosilicates
  (78.5.4)Dana Group
 
78.5.4.1 Canasite (Na,K)6Ca5Si12O30(OH,F)4 C 2/m 2/m
Help on Strunz Class: Strunz Class: VIII/F.35-10 VIII - Silicates
  VIII/F - Inosilicates (chain and band) complex chain structure. Cylindric chains and others
  VIII/F.35 - Ashcroftine-(Y) series
 
VIII/F.35-10 Canasite (Na,K)6Ca5Si12O30(OH,F)4 C 2/m 2/m
 
VIII/F.35-20 Frankamenite! K3Na3Ca5(Si12O30)[F,(OH)]4·(H2O) P1 1
 
VIII/F.35-30 Miserite K(Ca,Ce)5[Si8O22](OH,F)2 P1 1
 
VIII/F.35-40 Yuksporite (Sr,Ba)2K4(Ca,Na)14([],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n,n~3 P 21/m 2/m
 
VIII/F.35-50 Charoite K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O) P*/4 ((pseudo Ortho) 2/m
 
VIII/F.35-60 Eveslogite! (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14 P 2/m 2/m
 

Other Canasite Information
Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Canasite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (MinSocAm) 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Canasite

(Na,K)6Ca5Si12O30(OH,F)4
Dana No: 78.5.4.1 Strunz No: VIII/F.35-10
Locality:

 

Notes:

 
 
   
 
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