Moonstone Madagascar, 1.756 carats

Technical details: Type: Madagascar Moonstone Weight: 1.756 carats Shape: Emerald Color: Multicolored (Rainbow) Clarity: Moderately Included Transparency: Translucent Hardness: 6.0-6.5 Treatment: Untreated Origin: Madagascar Certification: Electronic certificate (PDF) from Saudi Laboratory (MT) - website (www.mtgl.com.sa) Moonstone is a gemstone belonging to the feldspar minerals group, known for a unique optical phenomenon called "adularescence," where a blue or white glow resembling moonlight appears to flow 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 types of volcanic rocks.