Polished Eucryptite EU117 Marra Mamba Prehnite rough rock

Prehnite rough rock

The stone from this deposit was last mined more than 30 years ago

All reasonably uniform in size (roughly 20 - 30 mm diameter} A bulk assortment

Dimensions at widest points approximately 240 mm x 100 mm x 8 mm thick

Dimensions at widest points approximately 125 mm x 120 mm x 80 mm thick

Polished Eucryptite EU117 Marra Mamba Prehnite rough rockEU117 Eucryptite rough rock, cut and polished on one side with a natural back. A fluorescent mineral ! Dimensions at widest points approximately 90 mm x 70 mm x 40 mm thick. Weighs 335 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