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Apr 23, 2024
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GEOL 4 - (NS) Introduction to Gemology and GemstonesSemester Hours: 3
Every Other Year
Study of gem minerals, as a specialized branch of mineralogy. The role of gems as rock forming minerals including the genetic origin in igneous, sedimentary and metamorphic rocks and process environments are discussed. Crystal structure, atomic distribution, chemical composition, chromophores and interrelated physical properties of gem minerals including hardness, cleavage, color, density, and refractive index are emphasized. Testing procedures for the identification of common gemstones and synthetic gemstones focus on density and optical measurements. Written research report and in-class oral presentation using visual media required of all students. Field trip to American Museum of Natural History supports course topics. (2 hours lecture, 2 hours laboratory.)
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