Description: Tetrahedrite group Neves-Corvo Mine, Santa Bárbara de Padrões, Castro Verde, Beja District, Portugal aprox. 10 cm FOV Tetrahedrite group mineral taken in situ. The presence of tetrahedrite, tennantite and freibergite (usually in intermediate composition) has been reported. Without analysis of the sample, the correct label is tetrahedrite group or tetrahedrite-tennantite.

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