Polished Mookaite slab MK521 Wanong Dendritic Opal Porphyry is a general term

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

Tumble polished Brecciated Mookaite

Dimensions at widest points approximately 190 mm x 100 mm x 90 mm thick

Weighs 941 grams

Dimensions at widest points approximately 105 mm x 65 mm x 35 mm thick

Polished Mookaite slab MK521 Wanong Dendritic Opal Porphyry is a general termMK521. Mookaite slab, cut and polished on one side. Dimensions at widest points approx. 105 mm x 85 mm x 8. 5 mm. thick. Weighs 159 grams. From our mining lease on Mooka Creek , Kennedy Ranges, Western Australia.