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1.7" Yellow-Green Adamite Crystals - Durango, Mexico
This is a beautiful specimen of gemmy, yellow-green adamite crystals collected from the Ojuela Mine in Durango, Mexico. A unique, botryoidal mass can be found between the two limonitic matrix layers, formed from an aggregation of fanning adamite crystals. A break in one of these rounds, reveals an incredible banding pattern of formation.
About Adamite
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.
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, Mapimi, Durango, Mexico
SIZE
Matrix 1.7" long, 1" wide
CATEGORY
ITEM
#65319
