This Specimen has been sold.
Fluorescent, Green Adamite Crystals - Durango, Mexico
This is a beautiful specimen of gemmy, green Adamite crystals on a limonite matrix from the Ojuela Mine in Durango, Mexico. The green crystals are quite vibrant, fluorescent and form small clusters up to 0.6" across. Micro-crystals can be found in cavities around the matrix as well.
Adamite is a basic zinc arsenate with the base chemical formula of Zn2(AsO4)(OH). When impurities are present in the mineral, the color is altered, explaining the wide variety of colors that adamite displays. Copper and cobalt are some well-known impurities that can give mineral specimens a green (Cu) to pink/red (Co) color. Adamite is typically found imbedded in a limonite matrix, formed as a secondary mineral in oxidation zones of hydrothermal replacement deposits.
SPECIES
Adamite
LOCATION
Ojuela Mine (Level 4), Mapimi, Durango, Mexico
SIZE
Matrix 2.9x1.2", Largest Cluster 0.6"
CATEGORY
ITEM
#45678