Sperrylite 3.90 ct Trillion Cut 6.70 x 6.70 mm Canada T1058
Sperrylite is a platinum arsenide mineral
It was discovered by Francis Louis Sperry, an American chemist, in 1889 at Sudbury.
The most important occurrence of sperrylite is in the nickel ore deposit of Sudbury Basin in Ontario, Canada. It also occurs in the layered igneous complex of the Bushveld region of South Africa and the Oktyabr’skoye copper-nickel deposit of the Eastern-Siberian Region, Russia.