The raw material source is a steatitic talc, also called soapstone, which originates from the thermal metamorphism of siliceous dolomitic rocks. |
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These sequences are immediately unerlain by steatitic ultramafics. |
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It includes vast deposits of coal, limestone, slabs, oil and natural gas, manganese, asbestos, iron ore, gold, diamonds, graphite, tungsten, steatitic, feldspar, and silica. |
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