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|Name:||Named after its type locality at the Gcwihaba Cave (Drotsky's Caverns), Maun, North-West District, Botswana (NOTE: The name was altered slightly to aid pronounciation - c in name stands for click sound ! of San people).|
This page provides mineralogical data about Gwihabaite.
Classification of Gwihabaite
|Strunz 8th edition ID:||5/A.01-25|
|Nickel-Strunz 10th (pending) edition ID:||5.NA.15|
5 : CARBONATES (NITRATES)
N : NITRATES
A : Without OH or H2O
|Dana 7th edition ID:||18.104.22.168|
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Type Occurrence of Gwihabaite
|Type Locality:||Gcwihaba Cave (Drotsky's Caverns), Ngamiland West District, North-West District, Botswana|
Occurrences of Gwihabaite
Physical Properties of Gwihabaite
|Density (measured):||1.77 g/cm3|
|Density (calculated):||1.80 g/cm3|
Crystallography of Gwihabaite
|Class (H-M):||mmm (2/m 2/m 2/m) - Dipyramidal|
|Cell Parameters:||a = 7.075Å, b = 7.647Å, c = 5.779Å|
|Ratio:||a:b:c = 0.925 : 1 : 0.756|
|Unit Cell Volume:||V 312.66 Å³ (Calculated from Unit Cell)|
|Morphology:||Slender prismatic crystals, divergent aggregates or "cave flowers"|
Optical Data of Gwihabaite
|RI values:||nα = 1.458 nβ = 1.527 nγ = 1.599|
|2V:||Measured: 90° , Calculated: 86°|
|Maximum Birefringence:||δ = 0.141|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Chemical Properties of Gwihabaite
|Essential elements:||H, N, O|
|All elements listed in formula:||H, K, N, O|
Relationship of Gwihabaite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Gwihabaite
|Other Information:||Soluble in water, deliquescent|
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Gwihabaite
Bulletin of the South African Speleological Association: 36: 19-21.
Internet Links for Gwihabaite
Localities for Gwihabaite
The 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. ? 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.
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