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2.8" Chatoyant Blue-Grey Smithsonite - Congo
This is a beautiful, 2.8" wide, botryoidal smithsonite specimen, collected from the Yanga Koubenza quarries in the Republic of the Congo (Brazzaville). The smithsonite exhibits a blue-grey coloration, with a visible chatoyant effect when tilted back and forth under a light source.
Comes with an acrylic display stand.
Comes with an acrylic display stand.
About Smithsonite
Smithsonite forms in earthy botryoidal masses, sometimes forming grape-like structures. It can be found as a secondary mineral in oxidation zones of zinc ore deposits, in some sedimentary deposits, and as an oxidation product of sphalerite. The general chemical formula of smithsonite is ZnCO3, however Fe (iron), Mg (magnesium), Ca (calcium), Cd (cadmium), Cu (copper), and Co (cobalt) can take the place of Zn (zinc). This potential for elemental variation results in smithsonite's wide variety of colors, including blue, green, yellow, orange, pink, purple, brown, gray, white, and colorless.
Smithsonite forms in earthy botryoidal masses, sometimes forming grape-like structures. It can be found as a secondary mineral in oxidation zones of zinc ore deposits, in some sedimentary deposits, and as an oxidation product of sphalerite. The general chemical formula of smithsonite is ZnCO3, however Fe (iron), Mg (magnesium), Ca (calcium), Cd (cadmium), Cu (copper), and Co (cobalt) can take the place of Zn (zinc). This potential for elemental variation results in smithsonite's wide variety of colors, including blue, green, yellow, orange, pink, purple, brown, gray, white, and colorless.
SPECIES
Smithsonite
LOCATION
Yanga Koubenza quarries, M`fouati, Bouenza Department, Republic of the Congo
SIZE
2.8 x 2.3"
CATEGORY
ITEM
#326851
