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Cesstibtantite

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Formula:
(◻,Na,Sb3+)2Ta2O6(OH,Cs)
Hardness:
6½
Name:
In allusion to its assumed composition, containing CESium, antimony (Latin = STIBium), and TANTalum.
Synonym:
A synonym of Hydroxykenomicrolite
Cesstibtantite was described originally at Vasin Myl’k Mountain in Voronie Tundry, the Kola Peninsula, Russia, by Voloshin et al. (1981). Other occurrences were described in Manitoba, Canada, by Ercit et al. (1985), at Mt. Holland, Australia, by Nickel & Robinson (1985), and at Utö, Sweden, by Smeds et al. (1999).

The crystal structure of cesstibtantite from Vasin Myl’k Mountain and Manitoba was solved by Ercit et al. (1993).

Both are now to be classified as hydroxykenomicrolite.

The two other samples are also zero-valent dominant members of the microlite group, but it is not possible to prove that they are hydroxykenomicrolite.


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Unique IdentifiersHide

Mindat ID:
942 (as Cesstibtantite)
40360 (as Hydroxykenomicrolite)
Long-form identifier:
mindat:1:1:942:3 (as Cesstibtantite)
mindat:1:1:40360:1 (as Hydroxykenomicrolite)

Internet Links for CesstibtantiteHide

References for CesstibtantiteHide

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