Rough Blue Kyanite with Corundum / 1-2" AVG - 1 KILO LOT #3 Bright blue chrysocolla is a

Bright blue chrysocolla is a popular color replacement for turquoise in jewelry

Pieces measure approximately 25 to 35 millimeters (AVERAGE SIZE)

3-Piece Selenite Dangle Pendant with Gold Plating

The initial layer and the surrounding minerals and conditions affect subsequent layers and give agate its wide variation in appearance

Size is an average guide only

Rough Blue Kyanite with Corundum / 1-2" AVG - 1 KILO LOT #3 Bright blue chrysocolla is aQuantity: 1 kilogram Average size range: 1 to 2 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. This kyanite also contains inclusions of corundum, the same base mineral as rubies and sapphires.