A very dense and heavy stone that once carved can be polished to a beautiful deep, dark grey to black. Sorry about the price but it as become extremely difficult to acquire. PLEASE NOTE: Wonderstone can give off a heavy dust load, so please wear your dust respirators while carving. 

​Pyrophyllite, which is a phyllosilicate mineral composed of aluminium silicate hydroxide: It is a metamorphosed clay. The clay was formed by the alteration of volcanic ash, which apparently accumulated at the bottom of a quiet body of water. It forms a dense, but soft light grey, or darker grey stone. The strata, in which it occurs, is a 3.0 to 3.1 billion year-old volcanic sediment layer.

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