Dolomite from Tsumeb, Oshikoto Region, Namibia - image 1
Dolomite from Tsumeb, Oshikoto Region, Namibia - image 2

Dolomite from Tsumeb, Oshikoto Region, Namibia

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Sharp crystals of tennantite measuring to 1.5 cm in size on matrix with crystallized dolomite. Very slight micro-damage present, this still quite good for this Namibian classic. The Tsumeb Mine in Namibia is one of the most famous polymetallic deposits in the world, with large scale mining beginning around 1905 and continuing until its closure in 1996. The deposit is a complex pipe like ore body hosted in dolomitic limestone and is exceptionally rich in copper, lead, zinc, and numerous trace elements. Extensive underground workings reached great depths and produced an extraordinary diversity of minerals, particularly from the oxidized zones. Among the sulfide minerals present is tennantite, a copper arsenic sulfosalt that typically occurs as dark metallic crystals and masses within the primary ore zones. Tennantite formed during hydrothermal mineralization as metal rich fluids deposited complex sulfide assemblages in fractures and replacement bodies. Its presence reflects the chemically diverse and evolving conditions that make Tsumeb one of the most mineralogically significant localities in the world.

Product details

SizeCabinet
Dimensions12.0 x 8.0 x 6.5 cm
Added on09/08/2025
Current owner
Unknown Owner
Acquired
May 2026
Price paid
$530.00
Previous owners
DateCollectorAcquisition price
—Weinrich MineralsNot disclosed

Learn more

Dolomite
Mineral guide
Learn about Dolomite
classic carbonate prized for sculptural rhombohedra, luster, and colors from snow-white to pink, including cobaltoan varieties; ideal for cabinets.
Dolomite
Regional guide
Dolomite from Tsumeb, Namibia
from Tsumeb, Namibia — a diverse carbonate with hollow casts, epimorphs, and color variety, prized for paragenesis, display, and collectibility.
Locality guide
Tsumeb
Tsumeb, Namibia — world-renowned locality famed for a rich copper–lead–zinc ore pipe, with dioptase on calcite, azurite blades, and smithsonite prized by colle…