Diaspore
| Diaspore | |
|---|---|
Insoluble | |
| Other characteristics | Decrepitates releasing water in closed tube on heating |
| References | [2][3] |
Diaspore (specific gravity is 3.4. When heated before the blowpipe, it decrepitates violently, breaking up into white pearly scales.[5]
The mineral occurs as an alteration product of
kaolin at Schemnitz in Hungary. If obtainable in large quantity, it would be of economic importance as a source of aluminium.[5]
Diaspore, along with gibbsite and boehmite, is a major component of the aluminium ore bauxite.[3]
It was first described in 1801 for an occurrence in Mramorsk Zavod,
Urals, Russia. The name, which was coined by René Just Haüy,[6] is from the Ancient Greek διασπείρω meaning "to scatter", in allusion to its decrepitation on heating.[2]
Csarite, ottomanite, Turkizite and zultanite are trade names for gem-quality diaspore (also known as Turkish diaspore) from the İlbir Mountains of southwest Turkey.[7]
References
- S2CID 235729616.
- ^ a b Handbook of Mineralogy
- ^ ISBN 0-471-80580-7.
- ^ "The mineral diaspore". minerals.net. Retrieved 2014-06-10.
- ^ a b One or more of the preceding sentences incorporates text from a publication now in the public domain: Spencer, Leonard James (1911). "Diaspore". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 8 (11th ed.). Cambridge University Press. pp. 168–169.
- ^ Spencer 1911.
- .
