Crystal Quartz Skulls (5 Pieces) Size 30 mm Clear Gemstone Carvings #3 and tanzanite

and tanzanite

Green Kyanite Standing Freeform

Often used as a semiconductor with a fairly small band gap

Crystal Quartz Cluster Pendants with Silver Plated Bail

despite the name is a variety of banded calcite

Crystal Quartz Skulls (5 Pieces) Size 30 mm Clear Gemstone Carvings #3 and tanzaniteCrystal Quartz Gemstone Skulls Uniqueness Guaranteed: Every item is one of a kind, making them ideal for all projects or designs. Listing is for (5 pieces) Avg Size Range: (30 millimeters) Material Origin: (Brazil) Quartz is one of the most common minerals found in the Earth's crust, and takes on a variety of colors depending on the other minerals and trace elements that are included as it forms and grows. These pieces are formed primarily of rock