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Colquiriite Mineral Data
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General Colquiriite Information
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 Chemical Formula: |
CaLiAlF6 |
| Composition: |
Molecular Weight = 187.99 gm |
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Lithium 3.69 % Li 7.95 % Li2O |
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Calcium 21.32 % Ca 29.83 % CaO |
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Aluminum 14.35 % Al 27.12 % Al2O3 |
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Fluorine 60.64 % F 60.64 % F |
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- %
F -25.53 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
CaLiAlF6 |
| Environment: |
Rare accessory species in tin mine. Synthetic material used for laser crystals. |
| IMA Status: |
Approved IMA 1980 |
| Locality: |
Colquiri mine, Colquiri, Bolivia Link to MinDat.org Location Data. |
| Name Origin: |
Named after the locality. |
| Synonym: |
ICSD 39699 |
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PDF 33-794 |
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Colquiriite Image |
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Images:
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Colquiriite
Comments: Colorless tabular crystals of colquiriite on matrix.
Location: Serra Branca pegmatite, Pedra Lavrada, PicuÃ, ParaÃba, Northeast Region, Brazil.
Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag |
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Colquiriite Crystallography
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| Axial Ratios: |
a:c = 1:1.92629 |
| Cell Dimensions: |
a = 5.02, c = 9.67, Z = 2; V = 211.04 Den(Calc)= 2.96 |
| Crystal System: |
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3c |
| X Ray Diffraction: |
By Intensity(I/Io): 3.23(1), 2.22(0.9), 1.736(0.8), |
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Physical Properties of Colquiriite
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| Cleavage: |
None |
| Color: |
White. |
| Density: |
2.94 |
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
| Hardness: |
4 - Fluorite |
| Streak: |
white |
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Optical Properties of Colquiriite
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| Optical Data: |
Uniaxial (-), e=1.385, w=1.388, bire=0.0030. |
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Calculated Properties of Colquiriite
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| Electron Density: |
Bulk Density (Electron Density)=2.83 gm/cc
note: Specific Gravity of Colquiriite =2.96 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0030569571
Boson Index = 0.9969430429 |
| Photoelectric: |
PEColquiriite = 3.46 barns/electron
U=PEColquiriite x rElectron Density= 9.81 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Colquiriite is Not Radioactive |
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Colquiriite Classification
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| Dana Class: |
11.06.03.01 (11)Halide Complexes; Alumino-fluorides |
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(11.06)with miscellaneous formulae |
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(11.06.03)Dana Group |
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11.06.03.01 Colquiriite CaLiAlF6 P 3c 3 2/m |
| Strunz Class: |
03.CB.20 03 - HALIDES |
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03.C - Complex Halides |
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03.CB -Neso-aluminofluorides |
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03.CB.20 Colquiriite CaLiAlF6 P 3c 3 2/m |
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Other Colquiriite Information
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Colquiriite :
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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Colquiriite
CaLiAlF6
Dana No: 11.06.03.01 Strunz No: 03.CB.20
Locality:
Notes:
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