(n.) 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.

aa abyssal rock adamant basalt bedrock block lava bone brash breccia brick cement concrete conglomerate crag diamond druid stone festooned pahoehoe flint gneiss heart of oak igneous rock iron lava limestone living rock magma mantlerock marble metamorphic rock monolith nails oak pahoehoe pillow lava porphyry pudding stone regolith rock ropy lava rubble rubblestone sandstone sarsen schist scoria scree sedimentary rock shelly pahoehoe steel stone talus tufa tuff