2.25" Green Diopside Druzy Cluster on Wood Base Rare Natural Quartz Crystal Mineral Stone Specimen You will receive exactly this Diopside Cluster on Wood; size: 78mm x 57mm x 44mm / 3 1/16 x 2 1/4 x 1 3/4 Inches; 90g / 3.2 Oz (see photo)! Diopside has been regarded only as a collector's gemstone until recently, when the deep forest-green Chrome Diopside variety has made its way into the mainstream gemstone market. Although its intense green color rivals that of Emerald, its low hardness makes it prone to scratches, thus limiting it from overwhelming the gemstone industry. Chemical Formula: CaMgSi2O6; Color: Green, Yellow, Brown, Black; Hardness: 5 - 6; Mineral Class: Diopside; Diopside is named after Greek word for "double appearance" because of its crystal shape. It is one of the most common members of the Pyroxene Group. Diopside has a number of gem-quality varieties, including intense green Chrome diopside and fine blue Violane. Black diopside exhbiiting asterism or the Star effect is known. Diopside was discovered and first described about 1800, by Brazilian naturalist Jose Bonifacio de Andrada e Silva. (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)