The aquamarin is a beryl and the chemical formula is Al2Be3[Si6O18].
The hardness is about 7.5 to 8 and the crystal system is hexagonal.
It is blue, because of admixtures of iron. The aquamarine has got his
name, because it looks like the color of the sea. Aquamarine can be
found in the form of big hexagonal crystals. Many crystals are clear
and transparent. In former times in Greece different things were made
of aquamarine. Today also jewels are made of aquamarine. Aquamarine
cames from Brazil, Russia (Ural) and Madagascar. In antiquity people
thought that he has got positive and protecting effects.
Data about Aquamarine
Mineral class silicates
Crystal system hexagonal
g/cm3 to 2.8 g/cm3
Line color white
Gloss glass gloss