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19 September, 03:09

A certain igneous rock contains about 25 percent dark silicate minerals. The remainder of the rock is mostly plagioclase feldspar. What type of composition does the igneous rock have?

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  1. 19 September, 04:54
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    A certain igneous rock contains about 25 percent dark silicate minerals. the remainder of the rock is mostly calcium rich plagioclase feldspar. the type of composition does this igneous rock have is: b. basaltic
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