Rough Blue Kyanite Crystal / 2-5" AVG - 1 KILO LOT back-to-school This natural product has been

This natural product has been heat-treated or color enhanced

derives its name from the German village of Zschorlau where it was first discovered in a nearby tin mine in the late 1300s

Variations in color occur based on the amount of iron and the specific trace elements present in the original quartz

Origin: Brazil

This product contains many different stone types

Rough Blue Kyanite Crystal / 2-5" AVG - 1 KILO LOT back-to-school This natural product has beenQuantity: 1 kilogram Average size range: 2 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.