Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
orthorhombicuncommonArsenates
Adamite
Zn₂AsO₄(OH)
This specimen features a vibrant cluster of small, botryoidal to drusy, pinkish-purple crystals, characteristic of manganoan adamite, covering a matrix.
Adamite Physical Properties
Mohs Hardness
3.5Crystal System
orthorhombicLuster
vitreousStreak Color
whiteCleavage
good on {101}, poor on {010}Fracture
unevenSpecific Gravity
4.32Colors
yellow, green, violet-pink, colorless, white, blueTransparency
transparentType Locality
Ojuela Mine, Mapimí, Municipio de Mapimí, Durango, MexicoMineral Group
ArsenatesUses
collectorAssociated Minerals
limonite, hemimorphite, smithsonite, calcite, scorodite, mimetite, oliveniteRarity
uncommonGeological Context
Adamite is a secondary mineral that forms in the oxidized zone of zinc-bearing hydrothermal ore deposits. It results from the alteration of primary zinc minerals in the presence of arsenic.
