Polished Porphyry . PO 122 alcheringa narrina From our mining claims near

From our mining claims near Ora Banda in the Eastern Goldfields region of  Western Australia

It weighs 546 grams

Ord Ranges near Port Hedland

Approximate dimensions at widest points 235 mm  x 140 mm  x 13 mm thick

Dimensions at widest points approximately 130 mm x 65 mm x 9 mm thick

Polished Porphyry . PO 122 alcheringa narrina From our mining claims nearPO122. Pink porphyry slab, cut and polished on one side. From Mindoolah, Western Australia. Dimensions at widest points approximately 290 mm x 165 mm x 10 mm thick. Weighs 898 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