Home > Rock Forming Minerals – June 20 > MS1357 Tremolite

Tremolite - Sold

Tremolite is nominally a calcium magnesium silicate mineral, a member of the amphibole group (Hawthorne et al. 2012). Tremolite takes its name from Val Tremola, the presumed source of the original material. As things turn out, the original tremolite came from dolomites at nearby Campolungo (Roth, 2006).

This is a gem crystal of tremolite. It shows alluvial wear. Minor chattering of the crystal edges is present, just as one would expect for a crystal found in gem gravels. Excellent sample for research on amphibole and gem minerals. 31.2 carats.