Moonstone Madagascar, 1.213 carats

Technical details: Type: Madagascar Moonstone Weight: 1.213 carats Shape: Pear 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 mainly composed of thin layers of albite and orthoclase. This stone is usually found in pegmatite and marble rocks, and some volcanic rocks.