Rough Blue Kyanite with Corundum / 1-2" AVG - 1 KILO LOT #3 Agate Slice #2 1-KILO 3"-3

Agate Slice #2  1-KILO  3"-3

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

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

Rough Blue Kyanite with Corundum / 1-2" AVG - 1 KILO LOT #3 Agate Slice #2 1-KILO 3"-3Quantity: 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.