Green Tourmaline on Quartz Matrix - Unique #13 Green tourmaline is a crystal prized for its spectacular green colour. The crystal piece for sale is mostly quartz matrix with green tourmaline encrusting some of its surface. There are also some holes in which tourmaline crystal rods once gre. The specimen also has an orange-coloured rocky base which is actually pegmatite. This is a fascinating crystal specimen for both display and healing. Note: This crystal specimen is brittle/fragile and should be handled with care.