Quartz is a silicon dioxide crystal with a hardness of 7. Its crystal system is hexagonal (trigonal), and it is among the most abundant of [...]
Laser Quartz is the name given to a form of Quartz points which are naturally long and tapered towards the termination, which has small faces. [...]
Smokey alligator quartz (elestial quartz) is quartz with natural terminations all over the faces and body of a layered or etched crystal. It is a [...]