indigo blue marble semi-precious stone and gold mined from illegal mines in mozambique

amber amorphous apatite beautiful close-up closeup color colorful decoration deposit diamond dig digger energy environment expedition expensive exploration explore explorer fashion gem gemstone geology gift glamour investigate jem jewel jewelry luxury miner mineral mining natural opal ornament phosphate precious rare rock sapphire shiny silica silicate stone treasure gold illegal indigo blue marble semi-precious mined mines mozambique cabo delgado region