Tremolite is a calcium magnesium silicate mineral and member of the amphibole group. It forms by metamorphism of sediments rich in dolomite and quartz and forms in crystals or fibers. Tremolites color ranges depending on the level of iron content. Traces of manganese may give Tremolite pink or violet color. Jade is the green crystalline variety of Tremolite. The raw fibrous form of Tremolite is a type of asbestos, a naturally occurring fibrous silicate mineral. Tremolite was named in 1789 in after the Tremola Valley by Johann Georg Albrecht Höpfner who obtained mineral specimens that were said to be from the area. 

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