Round Kyanite Cabochon Select Stone Size:20mm Special Square Edge 7/8"

Special Square Edge 7/8"

587 – Swiss Twist Drill on 3/32" Shank 0

Three point shapes included: wheel

Ideal for sorting colored gemstones at gem shows or any poorly lit environment

Verify blade type when ordering if stainless steel blades are required for your application

Round Kyanite Cabochon Select Stone Size:20mm Special Square Edge 7/8"Kyanite takes its name from the Greek word kyanos, meaning "dark blue." This distinctive gemstone closely resembles sapphire and is widely used as an alternative, particularly in beads and cabochons. Kyanite generally ranges from blue to green, with traces of chromium and iron responsible for its characteristic color. Notably, kyanite possesses different hardness values depending on crystal directiona property unique among gemstones. These round