Opal is a natural gemstone with a Mohs hardness of 5.5–6.5, and its traditional symbolic meaning is “Hope, luck & creativity.” It is a birthstone for October.

MEANING

Hope, luck & creativity

LORE & HISTORY

Its shifting rainbow “play of color” is a physical effect — light diffracting through orderly arrays of microscopic silica spheres.

CARE

Contains water; avoid prolonged dryness and sudden temperature changes.

💎 October birthstone →

Meanings and lore reflect widely known traditions and are not claims of effect. Hardness and mineral group are standard mineralogy — About our data