Calcjarlite
A valid IMA mineral species - grandfathered
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About Calcjarlite
Formula:
Na(Ca,Sr)3Al3(OH)2F14
Colour:
White
Hardness:
4
Specific Gravity:
3.51
Crystal System:
Monoclinic
Name:
Named in allusion to its chemical relationship to Jarlite, containing CALCium in substitution for sodium in a specific structural site.
Unique Identifiers
Mindat ID:
861
Long-form identifier:
mindat:1:1:861:9
IMA Classification of Calcjarlite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Na2(Ca,◻)14(Mg,◻)2Al12F64(OH)4
First published:
1973
Classification of Calcjarlite
3.CC.20
3 : HALIDES
C : Complex halides
C : Soro-aluminofluorides
3 : HALIDES
C : Complex halides
C : Soro-aluminofluorides
11.6.10.2
11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
11 : HALIDE COMPLEXES
6 : Aluminofluorides - Isolated Octahedra
8.4.13
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Cjar | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Calcjarlite
Colour:
White
Hardness:
4 on Mohs scale
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.51 g/cm3 (Measured)
Comment:
Measured using a pycnometer
Optical Data of Calcjarlite
Type:
Biaxial (+)
RI values:
nα = 1.425 nβ = 1.428 nγ = 1.432
2V:
Measured: 72° , Calculated: 82°
Max. Birefringence:
δ = 0.007
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
not discernible
Chemistry of Calcjarlite
Mindat Formula:
Na(Ca,Sr)3Al3(OH)2F14
Element Weights:
Crystallography of Calcjarlite
Crystal System:
Monoclinic
Cell Parameters:
a = 16.19 Å, b = 9.86 Å, c = 7.15 Å
β = 99.2°
β = 99.2°
Ratio:
a:b:c = 1.642 : 1 : 0.725
Unit Cell V:
1,126.70 ų (Calculated from Unit Cell)
Comment:
Monoclinic symmetry assumed by analogy to jarlite.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.51 Å | (50) |
| 3.44 Å | (30) |
| 3.16 Å | (60) |
| 3.04 Å | (70) |
| 2.96 Å | (100) |
| 2.23 Å | (40) |
| 2.15 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) |
Type Occurrence of Calcjarlite
Place of Conservation of Type Material:
Mineralogical Museum, Tomsk Polytechnical Institute, Tomsk, Russia.
Institute of Geology and Geophysics, Siberian Division, Academy of Sciences, Novosibirsk, Russia.
Institute of Geology and Geophysics, Siberian Division, Academy of Sciences, Novosibirsk, Russia.
Associated Minerals at Type Locality:
Other Language Names for Calcjarlite
Common Associates
Associations Based on Photo Data:
| 1 photo of Calcjarlite associated with Thomsenolite | NaCa[AlF6] · H2O |
| 1 photo of Calcjarlite associated with Hydrokenoralstonite | Na0.5(Al,Mg)2(F,OH)6 · H2O |
| 1 photo of Calcjarlite associated with Fluorite | CaF2 |
Related Minerals - Strunz-mindat Grouping
| 3.CC.05 | Gearksutite | Ca[Al(F,OH)5(H2O)] |
| 3.CC.10 | Acuminite | Sr[AlF4(OH)(H2O)] |
| 3.CC.10 | Tikhonenkovite | Sr[AlF4(OH)(H2O)] |
| 3.CC.15 | Artroeite | Pb[AlF3(OH)2] |
| 3.CC.20 | Jarlite | Na(Sr,Na)7MgAl6F32(OH,H2O)2 |
| 3.CC.20 | Jørgensenite | Na2(Sr,Ba)14Na2Al12F64(OH,F)4 |
Other Information
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 Calcjarlite
mindat.org URL:
https://www.mindat.org/min-861.html
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Please feel free to link to this page.
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External Links:
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References for Calcjarlite
Reference List:
Localities for Calcjarlite
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Chile | |
| David Hospital collection and photo |
Russia (TL) | |
| Nozhkin et al. (1970) +2 other references |
USA | |
| Pavel M. Kartashov analytical data |
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Cryolite Mine, St Peters Dome, Cheyenne Mining District, El Paso County, Colorado, USA