Raw Blue Kyanite Crystal Rods / 1-5" AVG - 1 LB. LOT Menu Geodes such as micas

such as micas

with its distinctive purple color arising from the presence of iron impurities during the geological processes of crystal growth

and it is widely used when recreating reef conditions for aquariums

Green aventurine takes its color from inclusions of chromium-infused fuchsite

Raw Blue Kyanite Crystal Rods / 1-5" AVG - 1 LB. LOT Menu Geodes such as micasQuantity: 1 pound Average size range: 1 to 5 inches Kyanite is an aluminum rich crystal that forms on metamorphic rock under extremely high pressure. Its distinctive blue color comes from iron and titanium, and some pieces with trace amounts of manganese can turn orange instead.