Zincolivenite on Gartrellite - image 1
Zincolivenite on Gartrellite - image 2
specimen video

Zincolivenite on Gartrellite

$250.00

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Crystal Classics
Crystal ClassicsFeatured
Tucson, Arizona, USA
7,543 for sale·132 sold
A fine thumbnail specimen of Zincolivenite, as sharp, gemmy, dark green, colour-zoned crystals upon yellow powdery Gartrellite from Tsumeb mine. A few of the Zincolivenite crystals are damaged, but many are perfect. Old notes with the specimen erroneously document the Gartrellite as Bayldonite and record the Zincolivenite under its old name - Cupro-Adamite. These same notes record that a previous owner acquired it in 1979 from a German collector/dealer. A lovely, well-crystallized older specimen.

Product details

Species
Zincolivenite, GartrelliteAbout Zincolivenite →
SizeMiniature
Dimensions2.8 x 1.7 x 1.3 cm
Listed on12/02/2024
Locality
Namibia, Oshikoto Region, TsumebRegional guide →
SKUCC43536

Learn more

Mineral guide
Learn about Zincolivenite
emerald-green crystals in radiating sprays with vitreous to adamantine luster; notable localities, color, habit, and ID cues.
Zincolivenite
Regional guide
Zincolivenite from Tsumeb Mine, Namibia
from Tsumeb is the modern name for much of the vivid green “cuproadamite” and “cuprian adamite” that circulated for decades from this legendary Namibian mine. It sits between adamite and olivenite in the adamite–olivenite solid-solution series, with ideal composition CuZn(AsO4)(OH), and Tsumeb is one of the places where that chemistry becomes a collector’s problem as much as a mineralogical one: color, habit, and zoning can suggest the identity, but the most careful determinations rely on quantitative chemical analysis.