Orange single crystal aggregate of the extremely rare mineral kurumsakite from the type locality in Kurumsak (Kurumsak, Aksumbe, Turkistan Region, Kazakhstan). Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium. — Photo: David Hospital · CC BY-SA 4.0
Kurumsakite
Kurumsakite is an IMA-recognized mineral species in the silicate class, with the chemical formula Zn₈Al₈V⁵⁺₂Si₅O₃₅·27H₂O.
Key properties: specific gravity 4.03; Vitreous to silky luster; optically biaxial.
IMA symbol Krm, IMA status: questionable, named in 1954.
Found in bituminous schists in the walls of cavities and open fissures.
The name is derived from the locality at Kurumsak, Kazakhstan.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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