sample raw of white calcite mineral rock stone in the museum.

aluminium antimonite bedrock black blue boulder brass-yellow brown calcite carbon carbonate carving charcoal clay close-up coal copper crystal divided drusy economic feldspar formation fossil fuel geology granite gypsum hand hard hematite hydrated industrial isolated jewellery macro magnetite manganese metal metallic microcline mineral minerals museum natural nature nonmetallic object opal ore oxides phyllosilicate piece potassium quartz raw realgar rock rough sample sculpture specimen stone stonewall sulfate sulfide value vein white