Natural Topaz Information
Topaz is a silicate of aluminum containing fluorine and hydroxyl. Topaz was first extracted in earlier times on and island known then as Topazos or St. John which is now called Ziberget. Back when topaz was first being mined, it was mainly referred to as a gemstone, olivine. Without the knowledge of chemistry and mineralogy, yellowish or yellow stone which were undistinguishable were also given the name topaz. Topaz is often found in short to long prismatic crystals. It is often white, semi opaque, milky, or a dirty yellow. Topaz may also be transparent, colorless, honey colored, golden brown, or blue and much more rarely, pink or reddish. Mostly used in jewelry as gemstones are the transparent, colored crystals which have good luster.
Blue topaz has a definite, uniform sky-blue color and usually without any overtones. Much blue topaz on the market carries a slight gray or even a greenish tinge, giving it a lifeless appearance. Gemstones of several carats or even several tens of carats are much more common. Blue topaz sometimes has the resemblance of the gemstone aquamarine. Although with close examination, the two can be distinguished apart by aquamarine having more of a brilliant bluish green or even a greenish blue. Blue topaz is usually more of a definite blue, and if anything with a grayish tone.