A white variety of amphibole, or hornblende, occurring in long, bladelike crystals, and coarsely fibrous masses.
A basic calcium, magnesium, iron silicate, one of six naturally occurring fibrous minerals forming the group called asbestos. Occurs as translucent bright- to gray-green tough interlocking fibers which are flexible and elastic. Tremolite has not been used commercially, although it is sometimes a contaminant in asbestos-containing products.
a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos