Black Tourmaline with Hematite and Feldspar Tower #01 Amazonite and in Laser Wand form

and in Laser Wand form

and all could contain dendrite formations

are found in several locations in Brazil

although Quartz can occur in numerous other growing habits

Black Tourmaline with Hematite and Feldspar Tower #01 Amazonite and in Laser Wand form208g 0. 459bs 7. 34oz 4. 14" x 1. 70" x 1. 15" Tourmaline is a complex aluminum borosilicate with a hardness of 7 to 7. 5. Its crystal pattern is hexagonal (trigonal) with prismatic crystals and striations running parallel to the main axis. No other gemstone has such wide variations in colors. Tourmalines can be red, pink, yellow, brown, black, and various shades of green, blue lilac and violet. Often the colors vary, sometimes widely, within a single