Sunstone is really a style of plagioclase feldspar that exhibits a spangled visual appearance, resulting from reflections of red hematite. Pearls are solutions of bivalve mollusks (largely oysters and mussels). They are built up of nacre, which is principally calcium carbonate in the shape of ara

Pressure has no effect on the development of rock candy. Even so, it takes the right blend of stress and temperature for minerals to crystallize. The gems that crystallize underground generally have to have really significant pressures and temperatures. Check out artist-made jewelry inspired by T