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)
trigonaluncommonCarbonates
Smithsonite
ZnCO₃
This specimen features botryoidal, blue-green smithsonite formations with a waxy to pearly luster, intergrown with white willemite.
Smithsonite Physical Properties
Mohs Hardness
4Crystal System
trigonalLuster
vitreousStreak Color
whiteCleavage
perfect rhombohedral {101̅1}Fracture
unevenSpecific Gravity
4.35Colors
blue-green, white, gray, yellow, pink, purple, brownTransparency
translucentType Locality
Berg Aukas (Berg Aukus), Grootfontein District, Otjozondjupa Region, NamibiaMineral Group
CarbonatesUses
ore of zinc, collector, jewelry, ornamentalAssociated Minerals
willemiteRarity
uncommonGeological Context
Smithsonite is a secondary mineral that forms in the oxidized zones of zinc-rich ore deposits, often as an alteration product of sphalerite or other zinc minerals in carbonate host rocks.
