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According to Websters Dictionary the definition of a mineral is an inorganic substance Citrine is one of the most popular minerals It is a variety of quartz Citrine is a yellowish-orange mineral Citrine is a very popular gemstone because it is very affordable and very pretty Along with topaz citrine is the birthstone for the month of November and the anniversary gemstone for the 17th year of marriage wwwjewelrymallcom Citrine is also considered a symbol of hope youth health and fidelity wwwhouseofonyxcom In ancient times citrine was carried as a protection against snake venom and evil thoughts wwwjewelersnet Other names for citrine are Imperial Topaz Oriental Topaz and Precious Topaz Chemical Formula A chemical formula is what elements make up the mineral Feather Snyder 1999 These elements can be found on the periodic table The chemical formula of citrine is SiO2 which is silicon and oxygen wwwgalleriescom Silicate or Non-silicate According to Websters Dictionary a silicate mineral is a combination of silicon oxygen and one or more minerals Because citrine is made up of silicon and oxygen it is a silicate mineral Physical Properties The properties you can observe without changing a substance into a new substance are physical properties Feather Snyder 1999 The five main physical properties in minerals are hardness cleavage fracture streak and luster Hardness Hardness is a measure of how easily a mineral can be scratched Hardness is usually measured on Mohs hardness scale The scale is measured from one to ten with one being the softest and 10 being the hardness Feather Snyder 1999 All kinds of quartz have a hardness of seven Because citrine is in the quartz family it has a hardness of seven wwwgalleriescom Cleavage Fracture Minerals that break along smooth flat surfaces have cleavage Cleavage is determined by the arrangement of minerals atoms Feather Snyder 1999 Citrine has no cleavage therefore it has fracture Minerals that break with rough or
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