Polished Green Opal slab GRN117 black conglomerate RH281 A slab
Baker’s notes & crumb story
Description
RH281 A slab
with great weathered rough side
CW123 Chinese Writing Stone rough rock
PA264 Pilbara Agate rough rock
Polished Green Opal slab GRN117 black conglomerate RH281 A slabGRN117 Green Opal slab, cut and polished on one side . Dimensions at widest points approximately 195 mm x 65 mm x 14 mm thick Weighs 339 grams. Green Opal occurs at a location south of Kalgoorlie in the Eastern Goldfields of Western Australia. The green colouration is caused by traces of nickel and or chromium. Sometimes it exhibits striking contrasting veins of magnesite..