Product Code Database
Actinolite is an amphibole silicate mineral with the chemical formula .
The old mineral name uralite is at times applied to an alteration product of primary pyroxene by a mixture composed largely of actinolite. The metamorphosed gabbro or diabase rock bodies, referred to as epidiorite, contain a considerable amount of this uralitic alteration.
Fibrous actinolite is one of the six recognised types of asbestos, the being so small that they can enter the and damage the alveoli. Actinolite asbestos was once mined along Jones Creek at Gundagai, Australia.
Another gem variety is the chatoyant form known as cat's-eye actinolite. This stone is translucent to opaque, and green to yellowish green color. This variety has had the misnomer jade cat's-eye. Transparent actinolite is rare and is faceted for gem collectors. Major sources for these forms of actinolite are Taiwan and Canada. Other sources are Madagascar, Tanzania, and the United States.
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