SIDERITE FOR SALE

Siderite, also known as "chalybite", is an iron carbonate mineral that belongs to the calcite group. It can contain a wide variety of impurities, including manganese, magnesium, calcium, zinc, and cobalt. Siderite usually comes in hues of brown with the occasional white and gray specimens. It can occur as rhombohedral crystals with rounded faces and, in rare cases, as scalenohedral crystals. Botryoidal, concretionary, massive, stalactitic, and mammillary are some its more common formations.

Since siderite is such a prevalent mineral, it can be found all around the world in a wide variety of colors and formations. A noteworthy location that produces beautiful gemmy siderite specimens is the Morro Velho Mine in Minas Gerais, Brazil. The crystals collected from here are often translucent yellow-green in color and form in association with dolomite, cubanite, pyrrhotite, and chalcopyrite.