Gemstones, marbles and granites, cement, rice, food items.
Sandstone.
Natural gemstones like kunzite, tourmaline, lapis, hasonite, calcite etc.
Marble kanda, size marble small stone pebles scrif marble calcium carbonate of 1200 to 1500 mesh.
Rough stone like rose quartz, rock crystal, amethyst, citrine, amethyst, citrine, rhodochrosite, rock crystal, rose quartz.