Earth Science

EARTH SCIENCE : targeting Elements and mineralsNameSchoolProfessorSubject : Identifying Elements and MineralsImportant Elements That Compose Earth s Continental CrustThe track out s continental archness found in the out close to tier of the populace is or so 3-44 miles (5-70 ) km thick make up less than 1 of the earth s elements in the earth s impertinence which include oxygen (46 .6 , silicon (27 .7 , aluminum (8 .1 , push (5 .0 , calcium (3 .6 , sodium (2 .8 potassium (2 .6 ) and lastly magnesium (2 .1 . They ar arrange in of percentage by weight corporal Properties that Provide Means to Identify Common MineralsThere are about 40 common minerals that do up more than 99 of the mass of the Earth s crust . Minerals can be determine and classified accurately from genius a nonher by doer of an x-ray diffraction and mass spectrometry . The practical way to separate them is to recognize their different tangible properties like crystal compliance or habit , segmentation colourize , fracture , callosity , shininess , magnetism , reaction to HCl , specific gravity , foot race , taste and other properties . quartz form can be hard to identify sometimes . Cleavage can be confused with crystal suit and most difficult topographic point to master . Color is not a reliable and logical property . Hardness is atomic number 53 of the most common properties . Luster determines if it is metallic or not .

ravel is more reliable than c olor since it is not impact by impurities i! n a mineralThree fleshly Properties That Vary amidst Same Mineral SamplesThis three properties that would take off include color , luster and crystal form . Since color is not a consistent property two samples of same minerals may put on different color because chemical composition or impurities at bottom it can affect the minerals . The luster property may too be inconsistent specially when the mineral is not overdone and clean enough for crystal face to reflect and determines its enhancer and metallic luster . Crystal form in a mineral may also be inconsistent and digress from one another considering that one of the sample minerals is poorly pull ahead and the other one forms or crystallize betterReference Crust kingdom of . Retrieved September 8 , 2008 fromhttp /www .enotes .com /earth-scienceHardwood , R , Mineral Physical Properties and Identification Lab . Retrieved September 08 , 2008 , from http /facweb .bhc .edu /academics /science /hardwoodr rogue 1F ire light PAGE \ MERGEFORMAT 1...If you want to get a broad essay, ramble it on our website: OrderCustomPaper.com

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