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Mineral Trays 1 and 2 |
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Crystal Symmetry and Point Groups; Mineral Trays |
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Miller indices; Crystal form; Tray 3 |
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Mineral tray 4 |
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Mineral tray 5 |
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Tuesday: Fall Break Thursday: Introduction to the petrographic microscope; refractive index; Tray 5 |
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Optics: Cleavage, birefringence, interference colors, sign of elongation, uniaxial interference figures |
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Uniaxial interference figures; biaxial figures |
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Biaxial interference figures Hand sample ID due 10/25 |
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Tuesday: Biaxial interference figures Thursday: pleochroism, extinction angles |
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Tuesday: Hand sample exam! Thursday: pleochroism, extinction angles |
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Feldspars, SiO2 polymorphs, feldspathoids |
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No lab |
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pyroxenes and amphiboles |
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Amphiboles, unknowns |
A due date for each lab assignment will be given in class. Assignments will receive a deduction of 10% for each day that they are late. I will not accept assignments more than 4 days late.