Igneous rock that has a fine grained texture forms from

Extrusive or volcanic rocks crystallize from lava at the earth's surface. The texture of an igneous rock (fine-grained vs coarse-grained) is dependent on the rate of cooling of the melt: slow cooling allows large crystals to form, fast cooling yields small crystals.

- "it was a failure that was an embarrassment for the kennedy administration."

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he sent troops to protect the students as they entered the school.