PG – 448

*PG448*

I Semester M.Sc. Degree Examination, February 2013 (RS) (2012-13 & Onwards) APPLIED GEOLOGY Paper – 101 : Crystallography, Mineralogy and Optical Mineralogy Time : 3 Hours

Max. Marks : 80

Instructions : i) Answer any five questions without omitting any Section. ii) All questions carry equal marks. SECTION – A 1. Explain any two of the following : a) Space lattice b) Symmetry in crystals c) X-ray crystallography. 2. Write notes on any two of the following : a) Forms of tetragonal system b) Crystal projections c) Forms of monoclinic and triclinic system. SECTION – B 3. Give a detailed account of any two of the following : a) Habit b) Colour and streak c) Hardness. 4. Explain any two of the following : a) Properties of garnet group of minerals b) Lustre and fracture c) Properties of pyroxene group of minerals. P.T.O.

*PG448*

PG – 448 5. Describe any two of the following : a) Silicate structures b) Physical properties of amphiboles c) Epidote group of minerals. 6. Give an account of any two of the following : a) Polymorphs of quartz b) Gemstones c) Mica group of minerals. 7. Write notes on any two of the following : a) Isotropism and anisotropism b) Uniaxial and biaxial minerals c) Universal stage. 8. Describe any two of the following : a) Extinction angle b) Pleochroism c) Optic axial angle.

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