Introduction to Optical MineralogyThis is an ideal textbook for both advanced undergraduates and graduate students. It contains valuable coverage of the optical properties of minerals, as well as up-to-date descriptions of common rock-forming minerals. The chapters on optical theory include discussions of the nature andproperties of light, the petrographic microscope, and the behavior of light in isotropic materials and in uniaxial and biaxial anisotropic materials. Thoroughly revised to include recent developments in the field, the book includes step-by-step procedures to guide students through the determinationof all optical properties by which minerals are routinely identified with a petrographic microscope. Readers will find descriptive information on over 125 common rock forming minerals, and many photomicrographs and illustrations. The book also includes a flow sheet to guide students through theprocess of identifying an unknown mineral. |
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acute bisectrix figures ALTERATION amphibole Andalusite axes Basal sections Becke line biaxial biotite birefringence bisectrix brown calcite chlorite cleavage COLOR AND PLEOCHROISM Colorless in thin colors in thin common commonly COMPOSITION AND STRUCTURE crystals DISTINGUISHING FEATURES elongate epidote extinction angle extraordinary ray fast ray Fe3+ field of view FORM glaucophane grain mount gray green hand sample high positive relief hydrothermal indicatrix INDICES OF REFRACTION interference colors INTERFERENCE FIGURE isochromes isogyres isotropic lamellae length fast length slow light lower birefringence lower polar melatopes metamorphic rocks microscope mineral Monoclinic negative obtuse bisectrix OCCURRENCE octahedral optic axis Optic axis dispersion optic plane OPTICAL ORIENTATION ordinary ray Orthorhombic pale parallel extinction parallel to 010 PHYSICAL PROPERTIES plagioclase PLEOCHROISM prismatic pyroxenes quartz REFRACTION AND BIREFRINGENCE RELIEF IN THIN riebeckite rotation sanidine slow ray tetrahedra thin section tion triclinic uniaxial upper polar usually vitreous luster wave normal wavelengths white streak yellow пр