Prehnite gemstone (Calcium Aluminum Silicate Hydroxide) has a hardness ratio of 6 and its composition tag is (CA2Al2SI3O10(OH)2).
Prehnite is ideal to carve or to make Natural Prehnite gemstone beads. Prehnite is also known as “Grape Jade”
Natural Prehnite is mined Australia, Canada, China, Germany, India, Namibia, Scotland, South Africa, USA. Prehnite gemstone has been confused with Peridot or jade as similar characteristics of pale green or greenish yellow colours.
