Pollucite. POR103 red jasper Dimensions approximately 110 mm x

Dimensions approximately 110 mm x 85 mm x 9

Dimensions at widest points approximately 130 mm  x 60 mm x 8 mm thick

MK537   Mookaite

Dimensions approximately 90 mm x 75 mm x 50 mm deep

Pollucite. POR103 red jasper Dimensions approximately 110 mm xPOR103. 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