Prehnite

Prehnite is a quite common mineral. If we look at its chemical structure, the stone is formed by aluminium silicate and calcium. The stone has been known since the eighteen century when Colonel H. von Prehna discovered it (and gave it its name) in South Africa in 1788, which is where this piece comes from too.

Prehnite uniqueness: A bright green colour and a glassy lustre – these are the main features of prehnite from an African deposit.

Special conditions/ treatment: Please, do not immerse prehnite in salt solutions or other chemicals.

About the product: The product is packed in firm plastic bags.