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Description
Eucryptite 2.60 ct Octagon Cut 10.80 x 6.40 x 5.30 mm Australia Y100639
EUCRYPTITE
A Lithium Aluminum silicate with formula: LiAlSiO4 and hardness 6.5.
Always massive, rarely transparent,more often translucent like in this case here. Rarely cut a a gem it shows a moderate blue-volet fluorescence at short wave UV light sometimes in bright pink.
This gem comes from Australia
