Lapis Lazuli stone (Lapis Lazuli) Afghan weighing 47.487 carats

Technical details: Type: Lazurite (Lapis Lazuli) (Lapis Lazuli) weight: 47.487 carats dimensions (mm): 34.24x21.33x7.10 shape: oval cabochon (Cabouchon) color: dark blue clarity: unclassified transparency: opaque hardness: 5.0-5.5 treatment: untreated origin: Afghanistan certification: certificate from Saudi Laboratory (MT) - website (www.mtgl.com.sa) Lapis Lazuli is a dense dark blue rock, not a single mineral, and is mainly composed of the mineral lazurite (Lazurite) with varying amounts of other minerals such as pyrite (Pyrite), which appears as golden spots, and calcite (Calcite), which appears as lines or white spots. Lazurite is known for its rich deep blue color, which was historically used as a dye "Ultramarine Blue".