Petroglyph is an interactive program designed to simulate a petrographic microscope. It is designed so students can independently explore a series of thin sections, amplifying a laboratory instructor's effectiveness. The program contains a database of petrographic thin sections which can be viewed by different microscopic methods. Three modes of study are available. In the Explore mode, a student uses a mouse to point to a mineral and its name is given; in the Query mode, the student must identify the grain (hints are provided; point counting can be done in this mode); and the Quiz mode creates graded quizzes that provide no hints. The downloadable demonstration version contains a thin section of an amphibolite for the Explore and Query modes. The demo version also contains a representative quiz of a clastic wacke.
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