Product Description

SPECIFICATION : ZrO2 = 58 to 62% ; SiO2 = 34 to 38% (average analysis result) Zirconium (Zr) is a grayish-white, metallic element with an atomic number of 40. It naturally combines with silica and oxygen to form the mineral zircon (ZrSiO4), the primary ore of this element. The zircon tetragonal prism crystals are found on beaches or in river placer deposits in association with silica containing minerals. The hard, refractory, but brittle crystals come in a wide range of colors: yellow, green, blue, red to brown. Clear zircon crystals, sold as Matura diamonds, make very brilliant gemstones because of their high refractive index. Clear yellow to red zircon, called hyacinth or jacinth, is also used as a gem. Ancient gems of hessonite garnets were also called jacinth and hyacinth which led to some being incorrectly labeled zircon (Ogden 1982). Zircons from Sri Lanka have been used for 2000 years. Large deposits are found in Australia. Other sources are Brazil, India, Pakistan, Thailand, New Zealand and