Onyx
オニキス
Onyx is a natural gemstone with a Mohs hardness of 6.5–7, and its traditional symbolic meaning is “Protection & willpower.”
Mohs hardness
6.5–7
Mineral group
Chalcedony
Color
Black
MEANING
Protection & willpower
LORE & HISTORY
A banded chalcedony, carved into cameos and seals since Roman times.
Same mineral group (Chalcedony)
※ Same mineral group means a shared crystal structure and composition (mineralogy).
Meanings and lore reflect widely known traditions and are not claims of effect. Hardness and mineral group are standard mineralogy — About our data