Indian Tiger's Eye stone, 36.933 carats

Technical details: Type: Tiger's Eye Weight: 36.933 carats Dimensions (mm): 32.00x22.18x5.49 Shape: Oval Color: Black and gold Clarity: Included Transparency: Opaque Hardness: 7.0 Treatment: Untreated Origin: India Certification: Laboratory certificate (MT) Saudi — Website (www.mtgl.com.sa) Tiger's Eye is a type of fine-crystalline quartz (Microcrystalline Quartz), known for its shiny silky luster that resembles a tiger's eye or a cat, a visual phenomenon called "chatoyancy" or "cat's eye effect." This stone is formed from fine fibers of crocidolite (a mineral of asbestos) that have transformed into silica while maintaining their fibrous shape, creating luminous streaks of gold and brown when reflected light. Tiger's Eye usually forms in metamorphic rocks.