Document B8OL3LZ5OvyqbgY6o5E6gRLGw

D1ft * Character! zed by extreme softness, soapy feel; common foliated structure; pearly luster; it is flexible but inelastic* Yields water only on intense ignition. Ohs* * . Talc or steatite is a very common mineral of secondary origin, and in the form of steatite constitutes extensive beds in some rgions. It.is often associated with serpentine, talcose or chioritic soldat, and dolomite, and frequently contains crystals of dolomite, breunnerlte, also asbestU3, actinolite, tourmaline, magnetite. It has been foraed by the alteration of ,non-aluminous m a g n e s i a silicates, like chrysolite, hypersthere, pyroxene, amphibole, etc. It is very common in pseudoraorphs ; see above. Only a few of the most important localities for the occurrenee of talc are given* Apple-green talc occurs at Mt* Greiner In the Sillertal, Austrian Tyrol; in Switzerland at St* Gotthard in Ticino and at Fiesch, etc., in Valais* Steatite comes from Gpfersgrn near Wunsiedel, Bavaria. From hear Llsard Head in Cornwall with serpentine; from the Shetland Islands. In the Transvaal in the Barberton district. Steatite occurs in large amounts in India and China. In the United States at various, points in Vermont, New Hampshire, and Massachusetts. From Srithflaid, Providence Co., Bhode Island; in Hew York at Edwards a'fine fibrous talc (agallte); and elsewhere in St. Lawrence Co.; the so-called rensaelaerlte is common in northern Mew York. In Pennsylvania in Chester, Delaware, and Lancaster counties. In Maryland at Ccoptown, Harford Co., with green, blue, and rose colors. Steatite occurs in Cherokee Co., 0^*th Carolina. In Canada talc and steatite are found in Brome Co*, and elsewhere in Quebec, and in Hastings Co*, etc*, in Ontario. Copied from - Dana, E. S. and ff. E. Ford, A textbook of mineralogy. John Wiley, N. Y. 4 th ed * I 9 3 2 , p. 6 77 \ - v 7- He 0003783 N6725