plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz
source: WordNet 3.0
something having the quality of granite (unyielding firmness)
A man of granite.
source: WordNet 3.0
A crystalline, granular rock, consisting of quartz, feldspar, and mica, and usually of a whitish, grayish, or flesh-red color. It differs from gneiss in not having the mica in planes, and therefore in being destitute of a schistose structure.
