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Amazonita

Fórmula Química

KAlSi3O8

Clase Química

Silicatos

Propiedades

Del grupo de los feldespatos, Amazonita presenta escisiones perfectas en dos direcciones formando ángulos de 90° o próximos a este valor, dureza de alrededor de 6 y la densidad relativa entre 2,55 y 2,76.

Procedencia

Santa Maria de Itabira, MG, Brasil.

Curiosidades

Los feldespatos son los minerales más abundantes de la costra, representando más del 60% de la superficie terrestre.

Uso

Esmaltado de vajilla y porcelana, fabricación de vidrio y porcelana. Las más puras amazonitas se transforman en bellas gemas al ser talladas. Autor de la foto: Andréa Ferreira

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

ABC de la minería

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