Polished Porphyry slab. PO 128 dendrites Weighs 196 grams

Weighs 196 grams

Dimensions at widest points approximately 100 mm x 85 mm x 8 mm thick

Weighs:  337 grams

Weighs 173 grams

100 mm x 80 mm x 35 mm thick

Polished Porphyry slab. PO 128 dendrites Weighs 196 gramsPO128. 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