Mineral: Acanthite
Locality: Proaño Mine, Fresnillo de González Echeverría (Fresnillo), Municipio Fresnillo, Zacatecas, Mexico
Dimensions: 4 x 3.5 x 4 cm / main crystal: 3.8 cm

Description: Mass: 76 g MIM number:1905 Large, perfectly formed floating crystal, of metallic gray color, surmounted by a later crystalline growth on certain edges showing a "melted" aspect. Photographer: FMI / James Elliott Publications: "extraLapis No. 52: Moderne Klassiker", "Paragénesis - Revista de Mineralogía 2019-2"

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