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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Feldspar |
-Aluminium silicate -Orthoclase -Tubular crystals -Cleavage: 2 -pale colour -Very common |
6 |
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Proxene |
2 cleverages at 90 degrees |
1 |
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Amphilbole |
-2 cleavages at 120 degrees -fibrous habit (crystals rare) |
2 |
|
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Olivine |
-Silicate -Green colour -Indistinct Cleavage -Conchoidal fracture -Occurrence in silica-poor igneous rocks (basalt, gabro) -igneous |
5 |
|
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Calcite |
-Calium cabonate -Usually white, six sided crystal -Good cleavage (fizzes) |
3 |
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Basalt |
-Fine grained -Dark -Is lava |
3 |
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Gabbro |
-Coarse grained -putonic |
2 |
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Dolerite |
-Medium grained -Shallow intrusions |
2 |
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Granite |
-Very coarse -Intrusive |
2 |
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Rhyolite |
-Very fine grained -Lava |
2 |
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Obsidian |
-Glassy texture -No crystals |
2 |
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Sandstone |
-Grain size: 0.063-2mm -Quartz-rich -> (quartzite) -Significant feldspar -> (arkose) -Muddy -> (greywacke) |
4 |
|
|
Mudstone |
-Grain size: <0.063mm -Fissile (breaks into sheets) -> shale -Significant silt (0.004-0.063mm) -> siltstone |
3 |
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Slate |
-Fine grained -Splits along cleavage -Clay minerals |
3 |
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Schist |
-mica rich surfaces -Coarser, mica-rich surfaces |
2 |
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Gneiss |
-Coarsely crystalline -pale and dark bands |
2 |
