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Published byJordan Powers Modified over 2 years ago

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Mineral Test 1 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 or 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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PPL XPL Mineral 2 mineral 2

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mineral 3 PPL XPL Mineral 3

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mineral 4 PPL XPL Mineral 4

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Mineral 5 XPL PPL - stage turned 70 o in lower view mineral 5

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mineral 6 PPL XPL Mineral 6

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XPL PPL – stage rotated 90 o in lower view mineral 7 Mineral 7 mineral 7

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mineral 8 air bubble PPL XPL Mineral 8

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mineral 9 PPL XPL Mineral 9

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mineral 10 PPL XPL Mineral 10 consists of entirely one mineral

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