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EU121 Eucryptite rough rock, cut and polished on one side with a natural back.
A fluorescent mineral !
Dimensions at widest points approximately 120 mm x 90 mm x 30 mm thick.
Weighs 461 grams.
Eucryptite is a lithium aluminium silicate that occurs in LCT pegmatites.
Under shortwave UV light it fluoresces a deep red colour.
From near Norseman in Western Australia