FIRUZA

FIRUZA, yak nav mineral; SuAl6[RO4]4 (ON) 8 • 4N2O. Odatan dar shakli massahoi yaklukhti nihonkristalli, agregathoi gurdamonand, rag va gayra duchor meoyad. Firuza khira va mumjilo buda, rangash kabudi osmoni, kabudi sabztob va buri sabztob ast.

Sakhtiash 5—6, zichiash 2,6—2,8 g/sm3. Firuza sangi qimatbaho buda, onro dar zargari baroi nigin istifoda mebarand. Konhoi Firuza dar ShMA, Meksika, Eron (Nishopur), inchunin dar SSSR — Qazoqistop, Uzbekiston va Tojikiston (Firuzakoni Qaromazor, Samarqandaki rayonni Isfara va gayra) mavjudand. T. Olimov.