1. 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

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

3. mineral 1
mineral 1
PPL XPL
Mineral 1

4. mineral 2
mineral 2
mineral 2
mineral 2
PPL XPL
Mineral 2

5. mineral 3
mineral 3
mineral 3
mineral 3
PPL XPL
Mineral 3

6. mineral 4
mineral 4
PPL XPL
Mineral 4

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

8. mineral 6
mineral 6
PPL XPL
Mineral 6

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

10. mineral 8
mineral 8
air
bubble
mineral 8
mineral 8
PPL XPL
Mineral 8

11. mineral 9
mineral 9
PPL XPL
Mineral 9

12. consists of entirely one mineral
PPL XPL
Mineral 10
consists of entirely one mineral