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Gemmy, Adamite Crystals With Calcite - Ojuela Mine, Mexico
This is a beautiful specimen of gemmy, yellow/green adamite crystals associated with small calcite crystals, collected from the Ojuela Mine in Durango, Mexico.
The entire specimen measures 2.8 x 1.6 x 1.5"
The entire specimen measures 2.8 x 1.6 x 1.5"
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 & Calcite
LOCATION
Ojuela Mine, Mapimi, Durango, Mexico
SIZE
Entire specimen 2.8 x 1.6 x 1.5"
CATEGORY
ITEM
#155317
