PPT-1 Optical Mineralogy

Lab 11 Fall 2016 Feldspars Exsolution Zoning and Twinning 2 Feldspars Feldspar minerals are the most common minerals in the earths crust They are aluminosilicates of potassium calcium and sodium. However unlike electrical current that 64258ows through a metal strip according to Ohms law optical waves travel in the waveguide in distinct opti cal modes A mode in this sense is a spatial distribution of optical energy in one or more dimensions t Use of the . petrographic. microscope in three easy . lessons. Jane . Selverstone. , University of New Mexico . 2003. Tark Hamilton, . Camosun. College, 2013. Part I. Why use the microscope??. Identify minerals . Lab 12 - Fall, . 2016. Pleochroism. , Interference Colors, . and Extinction Angles. 2. Pleochroism. The ability of a mineral to show different colors when viewed along differing crystallographic orientations. Archean. North Atlantic craton, southern West and South-West Greenland. Jochen Kolb. 1. , Denis M. Schlatter. 1. , Annika Dziggel. 2. , Alexander . F.M.. Kisters. 3. ¹Department of . Petrology. and . polarised. emission in X-ray binaries. Dave Russell. New York University Abu Dhabi. dave.russell@nyu.edu. In collaboration with T. ariq . Shahbaz. (IAC, Tenerife). I’d also like to thank Rob Fender, Elena Gallo, . 2016. Biaxial Interference Figures. 2. Biaxial Sign: B. x. a. Figures. To determine the optic sign of a biaxial mineral from a BX. A. figure, position the isogyres so that the melatopes are in the NE and SW quadrants. , . 2017. Pleochroism. , Interference Colors, . and Extinction Angles. 2. Pleochroism. The ability of a mineral to show different colors when viewed along differing crystallographic orientations. 3. Pleochroism Video. , . 2017. Uniaxial Interference Figures. 2. Conoscopic Observation. In order to observe an interference figure the microscope must be used in the . conoscopic. mode. Conoscopic. refers to the cone-shaped illumination obtained when the condenser lens is near the thin section. Project. Status . Update. Brice . Achkir. / . Cisco, . M.Immonen. / . TTM. Feb.10. th. , 2016. Santa Clara, CA. 1. Definition Stage. Contents. Introduction and scope. Demonstrator overview. Optical waveguide and connector technologies. Uniaxial Interference Figures. 2. Conoscopic Observation. In order to observe an interference figure the microscope must be used in the . conoscopic. mode. Conoscopic. refers to the cone-shaped illumination obtained when the condenser lens is near the thin section. 2016. Pleochroism. , Interference Colors, . and Extinction Angles. 2. Pleochroism. The ability of a mineral to show different colors when viewed along differing crystallographic orientations. 3. Pleochroism Video. multispectral imaging. Sophie LEROY. G. . Dislaire. , P. Barnabé, . E. Pirard. Predictive. . Mineralogy. Process. Control. Exploration. Remote. . Sensing. Reserve Estimation. University. of Liège (BE). . A mineral is naturally occurring homogeneous inorganic substance having distinctive physical properties and a more or less definite chemical composition.. Minerals are to a large extent the units which make up the rocks of the earths crust or the outer shell.. NAME: . PAVITHRA J. DESIGNATION: . ASSISTANT PROFESSOR. SUBJECT CODE: . 18PHY12. OPTICAL FIBERS. CONTENTS. Introduction. Principle. Types of Optical Fibers. Applications. Conclusions. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber..