Question

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

Answer 1

I think it's glassy.

Answer 2

oh, I just checked, it of course is glassy.

Answer 3

Yeah, either glassy or fine-grained. It depends on what it starts as.

Answer 4

okay thanks

Answer 5

Though, that "...do not have time to arrange themselves into crystals..." part really makes it seem like glassy is the best option.