- Olivenite, Gartrellite
- Cabinet, 11.3 x 9.5 x 8.5 cm
- Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
This is an exceptionally rich specimen of the very rare mineral species gartrellite, from Tsumeb. This rare arsenate was only found sparsely at Tsumeb. This is a cabinet piece loaded with the stuff in rich pistachio green microcrystals running on and through the matrix. Brilliantly lustrous, deep green, sharp olivenite crystals provide contrast. Ex. Willy Israel and John Innes Collections.