Kyanite or Disthene is a translucent pale to sapphire blue mineral. 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 in the Mohs scale, depending on the direction it is processed.
Diopside is a mineral of metamorphosed dolomitic limestones, calcium silicate meta-sediments and basic volcanic rocks. It is a silicate compound of magnesium, iron and calcium and is found 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 Apocalypse of John, pearls adorn the gates of the New Jerusalem.