Polished Desert Sunset DS178 Polished dendritic opal The porphyry pictured here has

The porphyry pictured here has pinkish coloured clinozoisite crystals set in a ground mass of dolerite

Variscite rough rock

Weighs 428 grams

Dimensions at widest points approximately 105 mm x 70 mm x 11 mm thick

Weighs 443 grams

Polished Desert Sunset DS178 Polished dendritic opal The porphyry pictured here hasDS178 Desert Sunset rough rock, cut and polished on one side with a natural rough back. Dimensions at widest points approximately 150 mm x 75 mm x 85 mm thick. Weighs 1,345 grams. Desert Sunset is a banded iron formation that is comprised of alternating layers of red and yellow jasper and chert with narrow bands of black hematite. It comes from near Fields Find, a small abandoned gold mining centre in the Midwest region of Western Australia.