Phenacite
Sometimes used as a gemstone, phenacite (or “phenakite”) consists of beryllium orthosilicate and is a rather rare (and highly priced) nesosilicate mineral. The crystals are isolated and occasionally transparent and colorless, but are more often translucent and yellowish or grayish in coloration. They can also be pink, rose-red or brown. Phenacite is often mistaken for […]