Sugilite has a fairly complex chemical formula, made from potassium, sodium, iron, manganese, aluminum, lithium, silicon, and oxygen! It forms as an intrusive inclusion along with other inosilicates and is a member of the cyclosilicate mineral family. Sugilite has a hexagonal prismatic crystal structure, but due to the odd crystal structure is generally not cut into gemstones. However, it does have a hardness of 5.5 - 6.5, and cabs really well.
To care for your sugilite, use lukewarm soapy water, then rinse well. Keep it away from steam, sudden temperature changes, and ultrasonic cleaners.
This sugilite pendant by Sherry Luke is wrapped with shining sterling silver wire.