Siderite - Morro Velho Mine, Minas Gerais, Brazil

This attractive specimen features an abundant cluster of lustrous golden-brown siderite crystals. The intergrown crystals display pronounced surface striations and flashes of golden metallic luster as the specimen is viewed from different angles. 

The specimen comes from the historic Morro Velho Mine near Nova Lima, Minas Gerais, Brazil, best known for its exceptionally long (and perhaps notorious) history as a gold-producing mine.

Mineral: Siderite
Locality: Morro Velho Mine, Nova Lima, Minas Gerais, Brazil
Crystal System: Trigonal
Mineral Class: Carbonates
Provenance: Ex Tom Collins Collection
Dimensions: 4.5 cm × 9.5 cm × 7.5 cm