Polished Porphyry . PO 123 Polished slab. Large reserves of this stone

Large reserves of this stone occur in Western Australia

also known as Ashburton Agate

polished on one side

From an unassigned unit of the Wyloo Group

Polished Porphyry . PO 123 Polished slab. Large reserves of this stonePO123. Pink porphyry slab, cut and polished on one side. From Mindoolah, Western Australia. Dimensions at widest points approximately 140 mm x 80 mm x 8. 5 mm thick. Weighs 188 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