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Colquiriite

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Formula:
CaLiAlF6
System:
Trigonal
Colour:
White
Hardness:
4
Name:
Named by K. Walenta, B. Lehmann, and M. Zwiener in 1980 for the type locality of Colquiri tin mine, Bolivia.
This page provides mineralogical data about Colquiriite.


Classification of Colquiriite

Approved
First Published:
1980
3.CB.20

3 : HALIDES
C : Complex halides
B : Neso-aluminofluorides
11.6.3.1

11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
8.6.16

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
6 : Halides of Al

Physical Properties of Colquiriite

Diaphaneity (Transparency):
Transparent, Translucent
Colour:
White
Hardness (Mohs):
4
Cleavage:
None Observed
Fracture:
Conchoidal

Optical Data of Colquiriite

Type:
Uniaxial (-)
RI values:
nω = 1.388 nε = 1.385
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Colquiriite

IMA Formula:
CaLiAlF6
Elements listed in formula:

Crystallography of Colquiriite

Crystal System:
Trigonal
Cell Parameters:
a = 5.02 Å, c = 9.67 Å
Ratio:
a:c = 1 : 1.926
Unit Cell Volume:
V 211.04 ų (Calculated from Unit Cell)

Type Occurrence of Colquiriite

General Appearance of Type Material:
Anhedral grains to 1 cm.

Ralstonite appears to replace colquiriite and gearksutite is present as veinlets so that colquiriite appears to be the oldest.
Place of Conservation of Type Material:
Institute for Mineralogy and Crystallography, University of Stuttgart, Stuttgart, Germany.
Geological Setting of Type Material:
Tin mine.

Relationship of Colquiriite to other Species

3.CB.05CryolithioniteNa3Al2(LiF4)3
3.CB.15CryoliteNa3AlF6
3.CB.15ElpasoliteK2NaAlF6
3.CB.15SimmonsiteNa2LiAlF6
3.CB.25WeberiteNa2MgAlF7
3.CB.30KarasugiteSrCaAlF7
3.CB.35UsoviteBa2CaMgAl2F14
3.CB.40PachnoliteNaCaAlF6 · H2O
3.CB.40ThomsenoliteNaCaAlF6 · H2O
3.CB.45CarlhintzeiteCa2AlF7 · H2O
3.CB.50YaroslaviteCa3Al2F10(OH)2 · H2O
8.6.1ZharchikhiteAl(OH)2F
8.6.2ChloraluminiteAlCl3 · 6H2O
8.6.3CadwaladeriteAlCl(OH)2 · 4H2O
8.6.4CryolithioniteNa3Al2(LiF4)3
8.6.5CryoliteNa3AlF6
8.6.6ChioliteNa5Al3F14
8.6.7ElpasoliteK2NaAlF6
8.6.8WeberiteNa2MgAlF7
8.6.9Hydrokenoralstonite2Al2F6(H2O)
8.6.10KoeneniteNa4Mg9Al4Cl12(OH)22
8.6.11 Chlor-manasseiteMgxAl(OH)2x+2Cl · (x-0.8)H2O x about 1.75
8.6.12GearksutiteCaAlF4(OH) · H2O
8.6.13ProsopiteCaAl2(F,OH)8
8.6.14YaroslaviteCa3Al2F10(OH)2 · H2O
8.6.15CarlhintzeiteCa2AlF7 · H2O
8.6.17ThomsenoliteNaCaAlF6 · H2O
8.6.18PachnoliteNaCaAlF6 · H2O
8.6.19Zirklerite(Fe,Mg)9Al4Cl18(OH)12 · 14H2O

Other Names for Colquiriite

Name in Other Languages:
German:Colquiriit
Spanish:Colquiriita

Other Information

Thermal Behaviour:
Structure breaks down between 800-900 C.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Colquiriite

Reference List:
Viebahn, W. (1971) Untersuchungen an quaternären fluoriden LiMeIIMeIIIF6 die struktur von LiCaAlF6. Zeitschrift für Anorganische und Allgemeine Chemie: 386: 335-339.

Walenta, K., Lehmann, B., Zwiener, M. (1980) Colquiriite, a new fluoride mineral from the Colquiri tin ore deposit, Bolivia. Tschermaks Mineralogische und Petrographische Mitteilungen: 27: 275-281.

Fleischer, M., Chao, G.Y., Francis, C.A. (1981) New mineral names. American Mineralogist: 66: 878-879.

Cabri, L.J., Fleischer, M., Pabst, A. (1981) New mineral names. American Mineralogist: 66: 1099-1103.

Bolotina, N.B., Maksimov, B.A., Simonov, V.I., Derzhavin, S.I., Uvarova, T.V. (1993) Atomic structure and spectral properties of LiCaAlF6:Cr3+ single crystals. Crystallography Reports: 38: 446-450.

Internet Links for Colquiriite

mindat.org URL:
https://www.mindat.org/min-1111.html
Please feel free to link to this page.

Localities for Colquiriite

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Bolivia (TL)
 
  • La Paz Department
    • Inquisivi Province
      • Colquiri
TMPM 27 (1980), 275
Brazil
 
  • Paraíba
    • Borborema mineral province
      • Pedra Lavrada
R. Wegner, H. Pöllmann, T. Witzke, & W. Schuckmann (1998): Colquiriite, carlhintzeite, ralstonite and pachnolite from Serra Branca-Pegmatite/Brazil.- Proceedings 17th General Meeting, IMA, August 1998, Toronto, A151
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Indigirka River Basin
        • Ust'-Nera
Gamyanin, G.N., Zayakina, N.V., Galenchikova, L.T. (2013): Arangasite, Al2(PO4)(SO4)F·7.5Н2O, a new mineral from Alaskitovoye deposit (Eastern Yakutia, Russia)". Zapiski RMO, 142(5), 21-30.
Mineral and/or Locality  
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