Which is the rarest natural stone?

One of the rarest natural stones in the world is known as Painite . Painite was discovered in Myanmar (formerly Burma) in the 1950s and was considered the rarest mineral in the world for many years. After its initial discovery, only a few examples were found, making it famous for its rarity.

Properties of Painite:

• Color: Painite can be found in shades of brown, reddish brown and red.
• Chemical Structure: The chemical formula of Painite is CaZrAl9O15(BO3).
• Crystal Structure: It has a hexagonal crystal system.
• Hardness: It has a hardness of 8 on the Mohs hardness scale, making it a durable stone.

Painite's rarity is due primarily to its late discovery and its limited availability worldwide. Despite the discovery of several new deposits in Myanmar, painite is still considered an extremely rare gemstone and is highly prized by collectors.

Besides Painite, other rare gemstones include Musgravite , Taaffeite , and Grandidierite . These stones are highly valued in the jewelry and collectible world due to their rarity and unique properties.