Prehnite Mineral Collection
Prehnite occurs in the veins and cavities of mafic volcanic rock. It is a typical product of low-grade metamorphism. Primary deposits of prehnite are sourced from several locations around the world. Prehnite occurs in a range of green colors, including pale green to dark green and yellow- to brown-green. Prehnite may also occur gray, blue, orange, white and colorless.