Pipestone also known as Catlinite. It consists of microscopic crystals of Pyrophyllite, Diaspore, Muscovite and Kaolinite.
Traces of Hematite give Catlinite its red color. No Quartz is present.
it is a soft mineral and very suitable for carving, Sacred to the American Indians it has traditionally been used to carve Prayer Pipes and Peace Pipes.
Pipestone is quite porous so will absorb body oils.