Botryoidal Yellow-Green Adamite On Limonite - Ojuela Mine, Mexico

This is a beautiful specimen of botryoidal, yellow/green adamite on a limonite matrix, collected from the Ojuela Mine in Durango, Mexico.

The entire specimen measures 1.6 x 1.8"

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 of the 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.
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DETAILS
SPECIES
Adamite
LOCATION
Ojuela Mine, Mapimi, Durango, Mexico
SIZE
Entire specimen 1.6 x 1.2"
CATEGORY
ITEM
#183426