UM1991-05-CO:BiCaCl
Valid as an unnamed mineral
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Formula:
Ca(BiO)Cl(CO3)
Crystal System:
Tetragonal
Seems to be the Cl analogue of kettnerite. Unique combination of (dominant) elements.
Intergrown with other Bi minerals (see the chemical part); it is commonly intergrown with beyerite forming layeres || (001); individuals are likely less than 1 micron in size, while the above intergrowths: 1-5 microns and more. Other associates are bismuth, calcite, chlorite group, gold, hedleyite, in veins cutting dolomitic marbles. The temperature of formation of the Bi intergrowths is said to be above 220°C, and the intergrowths are suggested to result from an interaction of highly oxiditing mixed hydrothermal/vadose solutions.
Intergrown with other Bi minerals (see the chemical part); it is commonly intergrown with beyerite forming layeres || (001); individuals are likely less than 1 micron in size, while the above intergrowths: 1-5 microns and more. Other associates are bismuth, calcite, chlorite group, gold, hedleyite, in veins cutting dolomitic marbles. The temperature of formation of the Bi intergrowths is said to be above 220°C, and the intergrowths are suggested to result from an interaction of highly oxiditing mixed hydrothermal/vadose solutions.
Unique Identifiers
Mindat ID:
52051
Long-form identifier:
mindat:1:1:52051:9
IMA Classification of UM1991-05-CO:BiCaCl
IMA status notes:
Unnamed (probably valid)
Chemistry of UM1991-05-CO:BiCaCl
Mindat Formula:
Ca(BiO)Cl(CO3)
Element Weights:
Crystallography of UM1991-05-CO:BiCaCl
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/mmm
Cell Parameters:
a = ~3.8-7.56 Å, c = ~11 Å
Ratio:
Comment:
Data based on (001) electronograms (not PXRD or SXRD)
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 UM1991-05-CO:BiCaCl
mindat.org URL:
https://www.mindat.org/min-52051.html
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References for UM1991-05-CO:BiCaCl
Reference List:
Localities for UM1991-05-CO:BiCaCl
Showing 1 localities.
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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.
Tajikistan | |
| Novgorodova et al. (1991) +1 other reference |
