Polished De Grussa copper ore slab CO138 crystoprase Weighs 221 grams
Baker’s notes & crumb story
Description
Weighs 221 grams
It weighs 675 grams
PU172 Purple Chalcedony slab
Rough Lime Magnesite
Polished De Grussa copper ore slab CO138 crystoprase Weighs 221 gramsCO138 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 240 mm x 120 mm x 11 mm thick. Weighs: 705 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of blue chrysocolla, minor green malachite, tenorite, native copper and brown iron oxides. The Degrussa underground mine is a high grade copper deposit in Western Australia that commenced operation in 2012 and ceased mining in 2022.