4.4" Rosasite and Selenite Crystal Association - Morocco

This colorful specimen contains blue-green colored rosasite crystals, enshrouded in a thin layer of beautifully transparent selenite crystal. Small spots of blue, likely azurite, can be found scattered across the exterior of the rock matrix. Along one edge of this specimen, a pokcet of dolomite crystals van be found. Comes with an acrylic display stand.

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.

Selenite is a variety of gypsum, a soft sulfate mineral that is composed of calcium sulfate dihydrate (CaSO4 · H2O). When chemically pure, gypsum is transparent and colorless, however, impurities give the gypsum a diverse range of colors and formations. Desert rose, selenite and satin spar are just a few of the varieties of gypsum known to have formed though hydrothermal processes.
DETAILS
SPECIES
Rosasite, Dolomite & Selenite
LOCATION
Bou Bekker, Touissit, Morocco.
SIZE
4.4 x 3.6"
SUB CATEGORY
ITEM
#104174