BY-7MJ-3G - Hackmanite

Gem(s)

Hackmanite : Na₈Al₆Si₆O₂₄(Cl₂,S)

Locality

Mindat locality:

Dimensions

weight: 0.46 carats

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Description

Size: 7.6 x 3.3 mm. Tenebrescent material getting darker in daylight or UV light.

Previous data

Mineral(s)

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3,420 gemdatids have been issued as of 12th Dec 2025 12:04 am UTC