fluorescent zinc silicate with UV glow; daylight colors range from colorless to pistachio, iconic from Franklin–Sterling Hill and Tsumeb.
Regional guide
Willemite from Tsumeb, Namibia
Tsumeb, Namibia: glassy to sparkling crystals in blue-green to champagne hues, botryoidal crusts and hexagonal prisms; classic oxide-zone formation.
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…
Comments