Ruby Zoisite 10mm Round - 15-16 Inch high-end-discount-2 Selenite is a crystal formed

Selenite is a crystal formed from the mineral gypsum

orange and rust are due to traces of hematite within the stone

white and occasionally gray or brown

Howlite can be easily dyed and is often treated to be blue for use as a substitute for turquoise

turquoise and white stone that can have streaks and patterns of white

Ruby Zoisite 10mm Round - 15-16 Inch high-end-discount-2 Selenite is a crystal formedRuby Zoisite occurs naturally when small Ruby crystals become embedded within Zoisite. The Ruby inclusions in this stone are pink to reddish purple to dark purple, while the Zoisite is light to medium green. Ruby has long been considered one of the most beautiful and valuable gemstones on the planet. It is also one of the hardest, second only to Diamond. At times in ancient history, Ruby was valued more highly than any other gem, including Diamond.