Mineralogy Database

Carletonite Mineral Data

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General Carletonite Information

Help on Chemical  Formula: Chemical Formula: KNa4Ca4Si8O18(CO3)4(OH,F)•(H2O)
Help on Composition: Composition: Molecular Weight = 1,027.61 gm
   Potassium   2.85 %  K     3.44 % K2O
   Sodium      7.83 %  Na   10.55 % Na2O
   Calcium    14.63 %  Ca   20.46 % CaO
   Silicon    21.86 %  Si   46.78 % SiO2
   Hydrogen    0.26 %  H     2.28 % H2O
   Carbon      4.27 %  C    15.63 % CO2
   Oxygen     47.57 %  O
   Fluorine    0.74 %  F     0.74 % F
                -   %   F    -0.31 % -O=F2    
             ______        ______ 
             100.00 %       99.57 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.75Na3.5Ca3.75Si8O18(CO3)3.65(OH)0.6F0.4�(H2O)
Help on Environment: Environment: Found in cores of thermally metamorphosed wall-rock zenoliths of shale and limestone(hornfels and siliceous marble).
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Carleton University, Ottawa, Canada where it was first recognized.
Help on Name Pronunciation: Name Pronunciation: Carletonite + Pronunciation Say CARLETONITE
Help on Synonym: Synonym: ICSD 12100
  PDF 25-628

Carletonite Image

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Comments: Several crystals of blue and white carletonite.
Location: Mt. St. Hilaire, Quebec, Canada. Scale: 2.8 x 2.7 cm.
© John Veevaert

Carletonite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.26688
Help on Cell Dimensions: Cell Dimensions: a = 13.178, c = 16.695, Z = 4; V = 2,899.25 Den(Calc)= 2.35
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mbm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.353(1), 4.171(1), 2.903(0.9),2.384(0.6), 4.053(0.5), 4.816(0.4), 16.705(0.4),

Physical Properties of Carletonite

Help on Cleavage: Cleavage: {001} Perfect, {110} Distinct
Help on Color: Color: Colorless, Light blue, Dark blue, Pink.
Help on Density: Density: 2.45
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white

Optical Properties of Carletonite

Help on Dichroism (e): Dichroism (e): very pale pinkish brown.
Help on Dichroism (w): Dichroism (w): very pale blue blue.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.061 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2209,KPDmeas= 0.2118,KC= 0.2081
Ncalc = 1.49 - 1.51
Help on Optical Data: Optical Data: Uniaxial (-), e=1.517, w=1.521, bire=0.0040.

Calculated Properties of Carletonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.44 gm/cc
note: Specific Gravity of Carletonite =2.45 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PECarletonite = 3.11 barns/electron
U=PECarletonite x relectron= 7.59 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 41.07 (Gamma Ray American Petroleum Institute Units)
Concentration of Carletonite per GRapi unit = 2.44 (%)

Estimated Radioactivity from Carletonite - barely detectable


Carletonite Classification

Help on  Dana Class: Dana Class: (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
  (72.03.01)Apophyllite group (4- & 8-membered rings) Apophyllite* KCa4(Si4O10)2F•8(H2O) P 4/mnc 4/m 2/m 2/m Apophyllite-(KF) (K,Na)Ca4Si8O20(F,OH)•8(H2O) P 4/mnc 4/m 2/m 2/m Apophyllite-(KOH) KCa4Si8O20(OH,F)•8(H2O) P 4/mnc 4/m 2/m 2/m Apophyllite-(NaF) NaCa4Si8O20F•8(H2O) Pnnm 2/m 2/m 2/m Carletonite KNa4Ca4Si8O18(CO3)4(OH,F)•(H2O) P 4/mbm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.EB.20 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EB -Double nets with 4- and 6-membered rings
09.EB.20 Carletonite KNa4Ca4Si8O18(CO3)4(OH,F)•(H2O) P 4/mbm 4/m 2/m 2/m

Other Carletonite 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 Carletonite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - GeoScienceWorld
9 - Google Images
10 - Google Scholar
11 - Handbook of Mineralogy (MinSocAm)
12 - Handbook of Mineralogy (UofA)
13 - MinDAT
14 - Mineralienatlas (Deutsch)
15 - Online Mineral Museum
16 - QUT Mineral Atlas
17 - Ruff.Info

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Dana No: Strunz No: 09.EB.20





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