|Gem Silica Cabochons|
At first I thought it was Aquamarine, or maybe even some sort of man-made glass. In researching this mineral, I saw that it goes by various names: Gem Silica, Gem Chrysocolla, Chrysocolla Chalcedony, and other similar names.
It is the most expensive gemstone in the quartz family.
What Is Gem Silica?
|Gem Silica Rough|
What is Chrysocolla?
What is "Gem Chrysocolla"?
When the very rare green-blue turquoise color of Chalcedony is found, it's called "Gem Chrysocolla" because the color is the same as Chrysocolla. Transparent Chalcedony is stained by the same copper salts that color Chrysocolla, resulting in the unique natural turquoise color of quartz. Gem Chrysocolla, or Gem Silica, has the incredible color of Chrysocolla but has the hardness of quartz.
|Jade-Like Gem Silica Rough|
Gem Silica, or Gem Chrysocolla, is extremely rare and is VERY expensive---over $100 a carat and UP, which is about ten to twenty times the cost of chalcedony.
It's popular in Asia for it's similar look to jade.
As a very expensive and rare stone, you would most likely find this gemstone set into 14k or 18k gold.