Botryoidal Chalcedony with Chrysocolla & Native Copper Sesepe, Laiwui District, South Halmahera Regency, North Maluku Province, Indonesia Dimensions: 4.5 × 4.2 × 2.0 cm
A particularly colorful specimen of botryoidal Chalcedony featuring densely clustered rounded formations in shades of icy blue, blue-gray, and soft lavender. Numerous botryoids reveal vivid turquoise to blue-green Chrysocolla beneath the translucent Chalcedony, producing striking spots of color throughout the specimen. The three-dimensional formation rises prominently from the matrix, with overlapping grape-like clusters creating an especially sculptural display.
This unusual material from Obi Island formed through the interaction of silica-rich fluids with copper mineralization. Successive layers of Chalcedony developed around and alongside copper-bearing minerals, producing the distinctive translucent blue-gray botryoids and brilliant turquoise inclusions characteristic of these specimens.
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