Kyanite, also known as Disthene, is a semi-transparent mineral with a sapphire-blue hue. The name Kyanite is derived from the Greek word “kyanos” which means deep blue, while the name Disthene is derived from its anisotropism, i.e. its property of exhibiting variable hardness depending on its orientation. Its hardness varies from 4.5 to 7 on the Mohs scale, depending on the direction it is processed.
Diopside is a mineral found in metamorphosed dolomitic limestones, calcsilicate metamorphic rocks, and basic volcanic formations. It is a silicate compound of magnesium, iron, and calcium, occurring in South Africa, Sri Lanka, and Siberia.
Pearls are lustrous and hard organic gems formed within mollusks, mainly in shells, around an original core, which can be either a parasite or a grain of sand. These foreign particles are then coated with layers of calcium carbonate. Pearls are thought to ward off negativism and clarify emotions. In the book of Revelation, pearls adorn the gates of the New Jerusalem.