Ruby
ルビー
Ruby is a natural gemstone with a Mohs hardness of 9, and its traditional symbolic meaning is “Passion, love & dignity.” It is a birthstone for July.
Mohs hardness
9
Mineral group
Corundum
Color
Red
MEANING
Passion, love & dignity
LORE & HISTORY
The same corundum as sapphire, colored red by traces of chromium. Long called the “queen of gems.”
Same mineral group (Corundum)
※ 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