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Published byJulian Gibbs Modified over 2 years ago

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Mineral Test 2 Write down details on each mineral as seen under PPL and XPL on the worksheets provided for you; then name the mineral under PPL colour transparency relief crystal fragment shape cleavage fracture pleochroism under XPL interference colours twinning extinction angle

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The MINERALS to choose from (not given in this order) quartz microcline plagioclase muscovite biotite amphibole pyroxene olivine garnet calcite

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mineral 1 PPL XPL Mineral 1

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mineral 2 PPL XPL Mineral 2

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Mineral 3 (view on right - under PPL) mineral 3

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mineral 4 PPL XPL Mineral 4

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mineral 5 PPL XPL Mineral 5

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mineral 6 PPL XPL Mineral 6

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XPL PPL – lower view rotated 70 o Mineral 7 mineral 7

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mineral 8 PPL XPL Mineral 8 (consists entirely of mineral 8)

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mineral 9 PPL XPL Mineral 9

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mineral 10 PPL XPL Mineral 10

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