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showing auctions 1 to 30 of 413
Iolite - (also called dichroite or water sapphire and lynx sapphire). Is a silicate of alumina, iron, and magnesia... which is usually violet-blue, but can be deep blue, light blue-grey, and yellow-white ….. It is used as a gemstone….Iolite is pleochroic; a single stone will show many colours (in the case of Iolite, violet-blue, light blue, and yellow-grey). ...it has a series formula of : (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18). ... |