Corundum (Ruby & Sapphire) - India

Locality: India Some UV Reactive pieces Mineral: Corundum (Aluminum Oxide) Chemical Formula: Al₂O₃ Hardness: 9 on the Mohs scale Color: Ruby — red to purplish-red; Sapphire — blue, pink, yellow, green, purple, orange, and colorless Clarity: Transparent to opaque Luster: Glassy (vitreous) to subadamantine Density: Approximately 3.95–4.10 g/cm³ Formation: Forms in aluminum-rich, silica-poor metamorphic and igneous environments, including marble, schist, and certain igneous rocks. Weathering can concentrate durable corundum crystals in alluvial deposits. Origin: Myanmar, Sri Lanka, Madagascar, Thailand, Mozambique, Tanzania, and the United States Unique Feature: Ruby and sapphire are varieties of the same mineral. Ruby's red color comes primarily from chromium, while blue sapphire typically gets its color from iron and titanium. Corundum is the second-hardest natural mineral on the Mohs scale, after diamond. Metaphysical Properties Known As: Stones of Passion & Wisdom Energy: Ruby — energizing, empowering, and passionate; Sapphire — calming, protective, and insightful Chakras: Ruby — root and heart; Sapphire — throat and third eye, particularly blue sapphire Emotional Support: Ruby is believed to encourage courage, confidence, and motivation, while sapphire is associated with emotional balance, focus, and inner peace. Spiritual Meaning: Ruby traditionally symbolizes vitality, love, and personal strength; sapphire represents wisdom, truth, and spiritual awareness. Symbolism: Passion, loyalty, courage, wisdom, and protection Intention: Embrace your inner strength, follow your passions, and move forward with wisdom and confidence. Common Uses Tumbling: Suitable for specialized tumbling and polishing, although its exceptional hardness requires appropriate abrasives and extended processing. Carving: Used for cabochons, ornamental carvings, and decorative pieces; diamond tools are generally required. Jewelry Making: Highly prized for faceted gemstones, rings, pendants, earrings, bracelets, and cabochons. Landscaping & Décor: Rough corundum crystals and specimens make attractive indoor displays and protected decorative arrangements. Crafts & Collections: Valued for mineral collections, lapidary projects, crystal specimens, and industrial abrasives. Photos have not been edited or altered, just taken in different daylight conditions to show the variation in color. Pieces are held in hand to help with scale and does not necessarily represent 1 pound. Specific pieces photographed may no longer be available.