mineral test 1 write down details on each mineral as seen under ppl and xpl on the worksheets...
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Mineral Test 1Mineral 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
The MINERALS to choose from (not given in this order)
• quartz• microcline• plagioclase• muscovite• biotite• amphibole• pyroxene• olivine• garnet• calcite
mineral 1mineral 1
PPL XPL
Mineral 1
PPL XPL
Mineral 2
mineral 2mineral 2
mineral 2mineral 2
mineral 3
mineral 3
mineral 3
mineral 3
PPL XPL
Mineral 3
mineral 4mineral 4
PPL XPL
Mineral 4
Mineral 5
XPLPPL - stage turned 70o in lower view
mineral 5
mineral 5
mineral 5
mineral 6mineral 6
PPL XPL
Mineral 6
XPL
PPL – stage rotated 90o in lower view
mineral 7
Mineral 7
mineral 7
mineral 7
mineral 7
mineral 8
mineral 8 mineral 8
mineral 8
air bubble
PPL XPL
Mineral 8
mineral 9mineral 9
PPL XPL
Mineral 9
mineral 10mineral 10
PPL XPL
Mineral 10consists of entirely one mineral