macro stone mineral apatite in calcite on a white background

amber apatite background beryl blue brimstone calcite carnelian chalcedony chalcopyrite citrine collage collection cornelian corundum crystal cutout gem gemstone geological geology heliodor hydrothermal isolated marcasite mineral name natural ore oropiment orpiment pegmatite phosphate pyrite pyrotite pyrrhotite quartz raw rock rough sample set stone sulfur sulphur unpolished various white yellow