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This specimen formed in gas cavities (vesicles) within ancient basaltic lava flows
Vivid orange Heulandite crystals with bright
green wavellite
A gorgeous pairing of shiny peach stilbite rising elegantly from a sparkling bed of druzy red heulandite—a classic
Unlike uniform gemstones
Bivalve (Pelecypoda) Fossil Sea Shell with Chalcopyrite | Mineralized Fossil Specimen | Indonesia Dogtooth This specimen formed in gasThis exceptional bivalve (Pelecypoda) fossil sea shell from Indonesia is a striking fusion of deep geological time and mineral transformation. Once a living marine organism, this shell has been preserved through fossilization and later enhanced by the natural crystallization of chalcopyrite, creating a stunning contrast between ancient biological form and metallic mineral growth. The fossil retains clear bivalve morphologyribbing, curvature, and shell
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