Tag Archives: prehnite

Epidote and prehnite are two striking green gemstones that have become increasingly popular in recent years. Both minerals share a similar color and vitreous luster, but they have distinct chemical compositions and crystal structures. Epidote: The Gem of Many Colors** Epidote is a calcium aluminum iron silicate hydroxide mineral with the formula Ca2(Al,Fe)3(SiO4)3(OH). It occurs […]