Copper in Matrix - Mineral quartz with copper rutile Description: This Australian opal specimen

Description: This Australian opal specimen is presented in rough form within its natural host rock

making the two claw marks stand out

and aluminum to concentrate and crystallize

Description: These ammonites have been iron replaced

Approximate Size of 1 piece: 18mm x 16mm x 6mmApproximate Weight of 1 piece: 1

Copper in Matrix - Mineral quartz with copper rutile Description: This Australian opal specimenMined from: Oumjrane Mining Area, Tinghir Province, Morocco Description: This specimen from the Oumjrane Mining Area in Tinghir Province, Morocco features native copper within its natural host rock, displaying green surface coloration produced by the oxidation of copper minerals. When exposed to oxygen and groundwater over time, copper commonly alters to secondary minerals such as malachite, which creates the distinctive green coatings often seen on