2.75ct Gem Silica from the Ray Mine in Arizona.
Also known as Chrysocolla/Chalcedony, Gem Silica’s color comes from Copper. It’s mined in only a few Copper Mining locations worldwide, with the Arizona locations being the most sought-after. Durability on these gems is quite good (7 on the Moh’s hardness scale, without cleavage), making them suitable for ringstones!
8 x 8.5 x 4.5 mm, Mined and Cut in the USA