Aventurine Quartz, Golden sandstone
Hardness：6.5 - 7.0
- 1.55 (Double refraction +0.009)
Locality：Brazil, India, Japan,
United States, Africa
most common colour of aventurine is green, but it may also be
orange, brown, yellow, blue, or gray.
include with micro-grain crystals & pyrite. Mostly dark green with metallic glittery appearance caused
by included fuchsite (chrome-bearing green mica), red- to gold-brown
caused by hematite or goethite.
Special Optical Effect：Aventurine Effect, stone shows sparkling spots when rotated under reflective light, it's due to the tiny mica plates within the quartzite.