Acids, Soda Ash, Caustic Soda, Solvents..
Dry abalone, raw abalone shells, frozen fish, squid, sea cucumber, all marine products, frankincense resin, rough gemstones like ruby, topaz, aquamarine, emerald, agate, turquoise, tourmaline, iolite, lapis lazuli, transparent hexagonal crystal and others of octagonal form, granite, volcanic glass and quartz.
