Rough alexandrite.
Stones Like Amethyst With Metal Stands And Druzy Amethyst..
Semi precious gemstones like rubellite tourmaline.
Semi precious stone like amber balitic.
Rough ruby..
Semi Precious Stones Like Agate Amethyst Aquamarine..
Semi Precious Stones Like Pearl..
Spodumene, silica, quartz.
Specifically in food, grains, fossil fuels, oil and crude oil, metals..