Hypersthene Beads

Hypersthene is an inosilicate mineral containing both magnesium and approximately 50% iron. Hypersthene forms in both igneous and metamorphic rocks and is found in upstate New York as well as in parts of the Northeastern Canadian provinces. Hypersthene be... moreads are quite heavy with a specific gravity of approx. 3.5 g/cm3 - meaning it is about 30% heavier than quartz. less