Crystal Quartz & Paraiba 12 x 10mm Oval Doublet Faceted Stone Item | 79590

Stone size:12 x 10mmStone shape:OvalMaterial:QuartzStone type:DoubletColor:BlueClarity:Eye-cleanMohs hardness:7Refractive index:1.5441.553Treatment:Assembled (ASBL)Specific gravity:2.692.72Cutting center:India This oval doublet is composed of a faceted clear quartz top and bottom; the adhesive that holds the two halves together provides the beautiful color of a paraiba tourmaline.please note: Care: Clean with warm, soapy water; never clean using steam or ultrasonics. Unless precisely calibrated to an exact size, gemstone sizes vary slightly. Yu Yo allows a tolerance of +/ 0.2mm for gemstones larger than 4mm. ^