The Opal Outlet Shop continues to offer a wide variety of gemstones including this beautiful, purple colored Spinel 020 Cushion Gemstone.
Learn more about spinel here
Spinel 020 Square Cushion Gemstone (Purple)
6 x 5.5 mm
Spinel, like garnet and diamond, is singly refractive, with the same physical properties in all crystal directions. It belongs to the cubic crystal system, and its characteristic crystal shape is an octahedron, which looks like two back-to-back pyramids. Well-formed spinel crystals are fairly common in nature.