Moonstone, 2.951 carats

Technical details: Type: Unknown Moonstone Weight: 2.951 carats Shape: Emerald Color: Multicolored (Rainbow) Clarity: Moderately Included Transparency: Translucent Hardness: 6.0-6.5 Treatment: Untreated Origin: Unknown Certification: Electronic certificate (PDF) from Saudi Laboratory (MT) - website (www.mtgl.com.sa) Moonstone is a gemstone belonging to the feldspar mineral group, known for a unique optical phenomenon called "adularescence," where a blue or white glow resembling moonlight flows across its surface when moved. Moonstone is primarily composed of thin layers of albite and orthoclase. This stone is usually found in pegmatite rocks, marble, and some volcanic rocks.