How would you distinguish between a biotite-plagioclase-quartz-orthoclase gneiss and a granite...?

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How would you distinguish between a biotite-plagioclase-quartz-orthoclase gneiss and a granite...?

with the same mineral compoisition?

2007-02-13 05:01:44 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology

1 answers

A gneiss will have mineral segregation such as banding of the different minerals. Granites will have a more even mix of the minerals throught out the rock. Don't confuse foliation and gneiss textures. Good luck

2007-02-13 07:43:28 · answer #1 · answered by Professor Kitty 6 · 0⤊ 0⤋