Polished Porphyry PO 129 Orbicular Granite Dimensions at widest points approximately

Dimensions at widest points approximately 130 mm x 80 mm x 80 mm thick

TI313   Tiger Iron slab

Weighs 308 grams

Dimensions at widest points approximately 155 mm x 120 mm x 12 mm thick

PRT108  Tumble polished Prehnite from Western Australia

Polished Porphyry PO 129 Orbicular Granite Dimensions at widest points approximatelyPO129. Pink porphyry rock, cut and polished on one side with a rough, natural back and a cut base to sit as a display specimen. From Mindoolah, Western Australia. Dimensions at widest points approximately 110 mm x 90 mm x 45 mm thick. Weighs 620 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