Bismuth has a very interesting shape and color. Although it looks like a gem, in fact it isn't. Bismuth is a metal that is used in various purposes. Being soft and brittle, it has lower melting point than other metals. It is considered as having the lowest level of toxicity. Bismuth can be used in production of medicines, cosmetics, and it can replace lead.

Azurite is a very popular mineral for it's perfect blue color. It is favorite to many gem collectors in he world. This beautiful piece was once crushed and used as a blue pigment. The most common use is in jewelry, as it looks stunning.

Realgar is known as ruby of arsenic. It is transparent, with dark red to orange-red color. It is used in production of fireworks, explosive and insect and snake repelent. This beautiful gem is known to be toxic. Realgar is used in the Chinese medicine. They mix it with rice liquor to make realgar wine, that is consumed during the Dragon Boat Festival. This drink is toxic and has become rarer practice.