Blank is a dark colored rock with a relatively low silica content

asked Apr 10, 2017 211k views

4 votes

8.3k points

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2 votes

Basalt is a dark colored rock with a relatively low silica content.

7.2k points

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asked Nov 2, 2020 144k views

GrahamJRoy asked Nov 2, 2020

8.8k points

1 answer

1 vote

144k views

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