Trevorite

Black massive trevorite in matrix
Black massive trevorite with possibly yellowish-green nimite and darker green willemseite
Origin: Nova Scotia Talc Mine, Barberton Mnts, Transvaal, RSA
Sample size: 2 x 3 cm (top), 1.5 x 2 cm (bottom)
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

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