1.Lava that cools so quickly that ions do not have time to arrange themselves into crystals will form igneous rocks with a _____ texture
* porphyritic
* glassy
* coarse-grained
* fine-grained
2.What type of composition does an igneous rock have that contains mostly plagioclase feldspar and...
1.Lava that cools so quickly that ions do not have time to arrange themselves into crystals will form igneous rocks with a _____ texture
* porphyritic
* glassy
* coarse-grained
* fine-grained
2.What type of composition does an igneous rock have that contains mostly plagioclase...