Aquamarine

Hardness:
7.5-8.0

Occurence:
Brazil, Ural Mountains (Russia), Afghanistan, Pakistan, India, Nigeria and Madagascar.

Appearance:
Aquamarine achieves its Blue to greenish Blue. It is a type of Beryl. Its name is Latin for seawater which appropriately describes the colour.

Something Extra:
Aquamarine, the "gem of the sea", derives its name from "sea water". The reference is obvious: aqua
sparkles like the sea and its color is pale to medium blue, sometimes with a slight hint of green.

Legends say that it is the treasure of mermaids, with the power to keep sailors safe at sea.
Aquamarine is said to be a particularly strong charm when immersed in water (which is a good thing, since that is when sailors need its power most!)
 

Mystical and magical qualities were ascribed to Aquamarine in the Medieval period. By holding an Aquamarine in your mouth, you could call up the spirits to ask questions. Water in which an Aquamarine had soaked was prescribed for eye ailments, respiratory problems and hiccups. To
make some medicinal treatments, Aquamarines were crushed to create a form of paste. The paste
was applied topically or further mixed to form a tonic. This tonic was widely used to treat the Black
Death. The Blue color of Aquamarine is symbolic of happiness and youth.