2.2" Botryoidal Rosasite and Azurite Crystals - Hidden Treasure Mine

This colorful specimen contains deep blue azurite crystal formations with blue-green, botryoidal rosasite. It was collected from the Hidden Treasure Mine in the Ophir District of Utah, a location that's well known for its zinc and copper mineral deposits.

Rosasite is a secondary mineral that forms in oxidation zones of copper-zinc deposits, generally forming a fibrous botryoidal sphere that can appear vitreous and silky. While typically featuring a blue-green color, colorless specimens are not unheard of. The chemical formula of rosasite is CuZnCO3(OH)2.

Azurite is a copper carbonate hydroxide mineral with a chemical composition of Cu3(CO3)2(OH)2. It is best known for it's beautiful and vibrant blue appearance, typically forming with other colorful, copper rich minerals.

Azurite and malachite are known to form in union with each other, for their chemical makeup is very similar. In fact, the presence of more or less water in the location of formation, is enough to determine whether an abundance of malachite over azurite, or vise-versa, will accumulate.
DETAILS
SPECIES
Rosasite & Azurite
LOCATION
Hidden Treasure Mine, Ophir District, Utah
SIZE
2.2 x 1.9"
SUB CATEGORY
ITEM
#109843