Polished Porphyry PO 129 crystoprase This piece has a smattering

This piece has a smattering of pyrite inclusions through it

Dimensions approximately 100 mm x 90 mm x 90 mm thick

Dimensions at widest points approximately 125 mm x 110 mm and 8 mm thick

Dimensions approximately 115 mm x 55 mm x 30 mm deep

50 mm x 40 mm  x 20 mm

Polished Porphyry PO 129 crystoprase This piece has a smatteringPO129. 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