Polished Porphyry slab. PO 128 polished jasper Dimensions at widest points approximately

Dimensions at widest points approximately 195 mm x 90 mm x 9

The "Carawine Dolomite" is a geological formation that occurs in numerous isolated areas in the eastern part of the Hamersley Basin in the Pilbara region of Western Australia

TI313   Tiger Iron slab

Dimensions at widest points approximately 175 mm x 100 mm x 6 mm thick

Polished Porphyry slab. PO 128 polished jasper Dimensions at widest points approximatelyPO128. Pink porphyry slab, cut and polished on one side. From Mindoolah, Western Australia. Dimensions at widest points approximately 110 mm x 85 mm x 8. 4 mm thick. Weighs 213 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