Mineralogy and Petrology I Geology 2311Exam: 50 minutesOctober 18, 2005Name _______________________________Answer five of the following seven questions. Each question is worth 10 points. If you spend an averageof one minute per point on each question, you will have 10 minutes left to check your work. Please timeyourself.1. Describe the physical properties of minerals that you use for identification? Use fluorite as an examplewhen describing the properties.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2.. Write an essay on solid solution. Your answer should include what it is, what determines if it takesplace, the different kinds of solid solution, what physical properties change with solid solution, andexamples of the above. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3. Recalculate this analysis into the formula for a mineral.Weight % Molecular weightNa2O 11.8 61.98Al2O319.5 101.96SiO268.7 60.09Please show all your work.