2.4" Ruby in Fuchsite w/Blue Kyanite Sphere Polished Natural Crystal Ball Gemstone Mineral - India You will receive exactly this Ruby Fuchsite Sphere - 61mm / 2 7/16 Inches Diameter; 360g / 12.7 oz (see photo, stand not included)! Occasionally, corundum crystals are found in fuchsite. When these corundum crystals are of a bright red color, the material is known as ruby in fuchsite. Fuchsite is a green variety of muscovite mica. It differs from most other muscovite by having a variable amount of trivalent chromium substituting for aluminum within the mineral. Chromium is the source of fuchsite green color. Chemical Composition of Fuchsite: K(Al,Cr)2(Si3AlO10)(OH)2; Chemical Composition of Ruby: Al2O3; Blue kyanite rim is diagnostic of ruby in fuchsite and can be used to avoid misidentification as ruby in zoisite. (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.)