C8-HNP-5U - Colemanite

Gem(s)

Colemanite : Ca[B₃O₄(OH)₃]·H₂O

Locality

Mindat locality:

Dimensions

weight: 9.33 carats

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Description

Size: 14.0 x 12.1 mm.

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Mineral(s)

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3,420 gemdatids have been issued as of 12th Dec 2025 12:30 am UTC