契沃尔
Boyacá, Colombia
位于哥伦比亚博亚卡东科迪勒拉山脉的契沃尔,与穆佐并列哥伦比亚两大历史祖母绿矿区。其祖母绿生长于切穿黑色页岩的方解石–黄铁矿脉中。
Chivor, in the eastern emerald belt of Colombia, is one of the country's two great emerald districts, producing fine emerald in black shale and calcite veins.
Colombian emerald
Colombia is a major source of fine emerald, and Chivor — high in the eastern Andes — is one of its historic mining centres. The emerald grew in veins cutting black, carbon-rich shale.
Signature minerals
Chivor is known for gem emerald (the green, chromium-bearing variety of beryl), often with pyrite, calcite and albite. Sharp emerald crystals on matrix are the prize.