Polished Porphyry slab. PO 127 outback jasper Dimensions at widest points approximately

Dimensions at widest points approximately 260 mm x 150 mm and 10 mm thick

135 mm x 110 mm x 10 mm thick and weighs 295 grams

115 mm x 95 mm x 8

Dimensions at widest points approximately 80 mm x 40 mm x 20 mm thick

MK457   Mookaite

Polished Porphyry slab. PO 127 outback jasper Dimensions at widest points approximatelyPO127. Pink porphyry slab, cut and polished on one side. From Mindoolah, Western Australia. Dimensions at widest points approximately 195 mm x 120 mm x 9. 4 mm thick. Weighs 469 grams. Porphyry is a general term that is used rather loosely for igneous rocks which contain relatively large isolated crystals set in a fine grained groundmass. The porphyry pictured here has pinkish coloured clinozoisite crystals set in a ground mass of dolerite. The