Quartz

Quartz generally evoke a translucent and colorless stone, but the quartz family is actually very wide. It extends over every continent and has every color imaginable, from rose quartz to purple (amethyst) through yellow (citrine), green (prasiolite) or black (onyx) just to name a few.
Quartz takes its name from the ancient Greek “krustallos” which means ice in reference to the belief that quartz is ice formed by the Gods.
In Japan, we find a similar symbolism because crystal was considered to be the frozen breath of the white dragon, symbol of perfection.