Nepalese Kainite stone, 2.31 carats

Technical details: Type: Kyanite Weight: 2.306 carats Dimensions (mm): 8.54x6.66x4.50 Shape: Oval Color: Blue Clarity: Eye-clean Transparency: Transparent Hardness: 4.5-7.0 Treatment: Untreated Origin: Nepal Certification: Certificate from Saudi Laboratory (MT) - Website (www.mtgl.com.sa) Kyanite is a silicate mineral of aluminum, known for its distinctive blue color ranging from light blue to dark blue, and can sometimes appear white, gray, or green. Kyanite is characterized by its variable hardness depending on the crystal orientation, being harder along one axis and softer along another. This mineral forms in regional metamorphic rocks, especially those formed under high temperature and pressure conditions.