Learn about Siderite
warm-toned iron carbonate with sharp rhombohedra and occasional gemmy crystals; prized for luster, classic localities Harz, Panasqueira, Dal’negorsk.Morro Velho mine
Morro Velho Mine, Brazil — Nova Lima locality famed for siderite, dolomite, pyrrhotite, cubanite, quartz, and scheelite; prized by collectors for its carbonate…
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