Crystal & Stones

Natural ruby corundum crystal specimen; Rob Lavinsky, CC BY-SA 3.0 — Roosters Peacock crystal guide
Ruby: The Stone of Vitality, Courage & Passionate Purpose
Ruby is the red gem variety of corundum, one of the hardest natural gemstones. Explore its mineral identity, chromium-related color, treatment-aware care, and modern associations with courage and vitality. Read more...