Pollucite. POR103 Polished rock. 180 mm x 130 mm

180 mm x 130 mm x 50 mm thick

Dimensions at widest points approximately 65 mm x 50 mm x 50 mm thick

Weighs:  107 grams

225 mm high x 155 mm wide x 70 mm

GRN104  Green Opal & Magnesite rough rock

Pollucite. POR103 Polished rock. 180 mm x 130 mmPOR103. Pollucite rough rock.. Extremely rare mineral specimen or suitable for cutting. Dimensions at widest points approx. 80 mm x 60 mm x 50 mm thick. Weighs 432 grams. From near Norseman, Western Australia. Pollucite only occurs in extremely differentiated lithium caesium tantalum (LCT) pegmatites. Economic caesium deposits are extremely rare, with only two mining operations worldwide having produced commercial quantities of pollucite. In 2018 a