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A polished Polyhedroid Agate specimen pair featuring solid quartz filling with little rainbows and a thin open vug of crystal.
Dimensions:
6cm x 2.3cm (4cm deep)
6.3cm x 2.3cm (3.6cm deep)
Total weight: 6.3oz
Polyhedroid Agates were found in Paraiba, Brazil, but are now unavailable. They are a unique formation of agate, featuring naturally flat surfaces at a variety of different angles. They are believed to have formed in the negative spaces between large crystal blades of calcite or aragonite, and can occasionally feature multiple "chambers" where those blades eroded and adjacent agates fused together.