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Colquiriite

A valid IMA mineral species
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About ColquiriiteHide

Formula:
CaLi[AlF6]
Colour:
White
Hardness:
4
Specific Gravity:
2.94
Crystal System:
Trigonal
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.


Unique IdentifiersHide

Mindat ID:
1111
Long-form identifier:
mindat:1:1:1111:8
GUID
(UUID V4):
1d2d1634-bd7f-4960-8900-f92c523e4573

IMA Classification of ColquiriiteHide

Classification of ColquiriiteHide

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
CqrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ColquiriiteHide

Transparency:
Transparent, Translucent
Colour:
White
Hardness:
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.94 g/cm3 (Measured)    

Optical Data of ColquiriiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.388(2) nε = 1.385(2)
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

Chemistry of ColquiriiteHide

Mindat Formula:
CaLi[AlF6]

Crystallography of ColquiriiteHide

Crystal System:
Trigonal
Cell Parameters:
a = 5.02 Å, c = 9.67 Å
Ratio:
a:c = 1 : 1.926
Unit Cell V:
211.04 ų (Calculated from Unit Cell)
Z:
2
Comment:
Point Group: 3 2/m or 3m.; Space Group: P31c or P31c (synthetic).

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012340ColquiriiteBolotina N B, Maksimov B A, Simonov V I, Derzhavin S I, Uvarova T V, Apollonov V V (1993) Atomic structure and spectral properties of LiCaAlF6:Cr3+ single crystals Crystallography Reports 38 446-4501993synthetic0293
0012341ColquiriiteBolotina N B, Maksimov B A, Simonov V I, Derzhavin S I, Uvarova T V, Apollonov V V (1993) Atomic structure and spectral properties of LiCaAlF6:Cr3+ single crystals Crystallography Reports 38 446-4501993synthetic0293
0015777ColquiriiteViebahn W (1971) Untersuchungen an quaternaren fluoriden LiMeIIMeIIIF6 die struktur von LiCaAlF6 Zeitschrift fur Anorganische und Allgemeine Chemie 386 335-33919710293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.23 Å(10)
2.22 Å(9)
1.736 Å(8)
3.98 Å(7)
1.446 Å(6)
1.978 Å(5)
1.552 Å(5)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites

Type Occurrence of ColquiriiteHide

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.
Associated Minerals at Type Locality:
Reference:
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.

Synonyms of ColquiriiteHide

Other Language Names for ColquiriiteHide

German:Colquiriit
Spanish:Colquiriita

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Colquiriite associated with PhosphosideriteFePO4 · 2H2O
1 photo of Colquiriite associated with BermaniteMn2+Mn3+2(PO4)2(OH)2 · 4H2O

Related Minerals - Strunz-mindat GroupingHide

3.CB.05CryolithioniteNa3Al2(LiF4)3Iso. m3m (4/m 3 2/m) : Ia3d
3.CB.15CryoliteNa2NaAlF6Mon. 2/m
3.CB.15ElpasoliteK2NaAlF6Iso. m3 (2/m 3) : Pa3
3.CB.15SimmonsiteNa2LiAlF6Mon.
3.CB.25WeberiteNa2Mg[AlF6]FOrth. mmm (2/m 2/m 2/m) : Immm
3.CB.25LeonardseniteMgAlF5 · 2H2O Orth. mmm (2/m 2/m 2/m) : Imma
3.CB.30KarasugiteSrCa[Al(F,OH)7]Mon. 2/m : P21/b
3.CB.35UsoviteBa2CaMgAl2F14Mon. 2/m : B2/b
3.CB.40PachnoliteNaCa[AlF6] · H2OMon. 2/m
3.CB.40ThomsenoliteNaCa[AlF6] · H2OMon. 2/m : P21/b
3.CB.45CarlhintzeiteCa2[AlF6]F · H2OTric.
3.CB.50YaroslaviteCa3Al2F10(OH)2 · H2OOrth.
3.CB.55SbacchiiteCa2AlF7Orth. mmm (2/m 2/m 2/m) : Pnma
3.CB.60VerneiteNa2Ca3Al2F14Iso. 2 3 : I21 3

Fluorescence of ColquiriiteHide

Other InformationHide

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.

Internet Links for ColquiriiteHide

References for ColquiriiteHide

Reference List:

Localities for ColquiriiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Bolivia (TL)
 
  • La Paz
    • Inquisivi Province
      • Colquiri
Brazil
 
  • Paraíba
    • Pedra Lavrada
Russia
 
  • Sakha
    • Indigirka River Basin
      • Ust'-Nera
 
矿物 and/or 产地  
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