Name the following rocks: (a) A fine-grained, unfoliated rock with intergrowing crystals of quartz, feldspar, and black

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Name the following rocks: 

(a) A fine-grained, unfoliated rock with intergrowing crystals of quartz, feldspar, and black mica; 

(b) A finely foliated rock with microscopic crystals of quartz and white mica; 

(c) A fine-grained rock consisting principally of clay minerals.

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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