Legend says that the mineral aquamarine was found in the treasure chests of mermaids. Sailors wore it for good luck.

                   Salt was once considered so valuable that ancient Roman soldiers were paid partly in salt instead of money.

                       Sapphire and Rubies are the same mineral: Corundum.

                          The gold burial mask of King Tut is decorated with blue rocks called Lapis Lazuli and the minerals Turquoise, Carnelian and Quartz.