Grey Sand (G002), White Quartz (G004), Platinum Granite (G007), Black Sand (G009), Black Pearl (G010), Midnight Pearl (G015), ... some of which reveal a striking translucency under light.

The main rock minerals I use myself and recommend to others include lava sand, granite sand, decomposed granite, zeolite, soft rock phosphate, greensand, Magic Sand, basalt and Azomite.