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Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2.It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]
This is a list of gemstones, organized by species and types. Minerals ... Topaz; Tourmaline subgroup: Achroite (var.) Chrome ... Color (beta) Automatic. Light.
American Golden Topaz, the largest cut yellow topaz, weighing nearly 23,000 carats (4.6 kg). Chalmers Topaz , a 5,899.5-carat (1.17990 kg) cut topaz. Tsavorite
In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [80] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...
Original - cut Topaz gemstones. it shows many colours of the stone's variations as well as the mystic and azotic coatings. Articles this image appears in topaz Creator Humanfeather Suggested by Humanfeather 09:54, 13 March 2010 (UTC) Comments. Image is too small to be featured, must be 1000 px on one side.
Even the same named gemstone can occur in many different colors: sapphires show different shades of blue and pink and "fancy sapphires" exhibit a whole range of other colors from yellow to orange-pink, the latter called "padparadscha sapphire". [39] This difference in color is based on the atomic structure of the stone.
Jewel-inspired baby names are as beautiful as a newborn baby themself. See unusual, cool and classic gem names for boys and girls. 73 jewel-inspired baby names, from Amber to Onyx
Pleochroism is an extremely useful tool in mineralogy and gemology for mineral and gem identification, since the number of colors visible from different angles can identify the possible crystalline structure of a gemstone or mineral and therefore help to classify it. Minerals that are otherwise very similar often have very different pleochroic ...
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