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Siderite has been attributed with metaphysical properties and is said to be a grounding stone that can help with balance and stability
Calcite is a carbonate mineral and the most stable form of calcium carbonate
Named for the Seraphim angels
a type of carbon molecule that is also found in meteorites
They have lovely shades of cream and brown and are a smooth finish
Poldervaartite - South Africa 8" x 5" x 2" lodolite Siderite has been attributed withPoldervaartite is a rare mineral that was first discovered in the Wessels Mine in the Kalahari Manganese Field of South Africa in 1987. It is named after the Dutch petrologist Dr. Pieter Poldervaart. Poldervaartite is a member of the pyroxenoid group of minerals and has the chemical formula NaCa3(CO3)2Si6O15F. This Poldervaartite specimen is from from the Kalahari Manganese Field No. Cape Providence S. Africa. It measures 8" x 5" x 2" and weighs
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