Monday, October 11, 2010

Metamorphic Review

Amphibolite
Dark colored
Heavy
Weakly foliated
Shiny flakes of black and white
Salt and pepper

Gneiss
Coarse-grained
Compositional banding

Marble
Non-foliated
Reacts with HCl

Phyllite
Platy minerals
Looks like slate with a shinier luster

Quartzite
Non-foliated
Black/dark in color
Tiny mica visible

 
Schist
Medium-coarse grained
Strongly foliated
Individual mica visible

Slate
Fine grained
Foliated
Slaty cleavage

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