|Unit cell||a = 5.216 Å, b = 24.6 Å, Z = 1|
|Color||Colorless, pale yellow or green.|
|Mohs scale hardness||1–2|
It occurs in serpentinized ophiolites and their residual soil. It also occurs in altered dolostone. Associated minerals include talc, chlorite, serpentine and calcite. In addition to the type locality in Italy it has been reported from Kinshasa, Katanga; the Chelyabinsk Oblast of the southern Urals and the Turii alkaline Massif of the Kola Peninsula in Russia; the Zirabulak Mountains of Uzbekistan; and the Goldstrike Mine of Eureka County, Nevada, USA.
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