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Pirrotita

Fórmula Química

Fe7S8

Clase Química

Sulfuros

Propiedades

Presenta hábito de cristales bien formados pseudo-hexagonales, su dureza varía de 3,5 a 4,5 y su densidad es 4,53. Tiene brillo metálico y su color puede ser amarillo-bronce, dorado, bronce-rojizo y castaño.

Procedencia

Mina de Morro Velho, Nova Lima, MG.

Curiosidades

Pirrotita es un sulfuro de hierro que presenta magnetismo, siendo, después de la Magnetita, el mineral más común que manifiesta esta propiedad.

Uso

Es un mineral usado como materia prima para fabricación de ácido sulfúrico, pudiendo, además ser fuente de Ni y Co.

Fuente: MM Gerdau - Museu das Minas e do Metal -

ABC de la minería

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