Column Capital—The top portion of a column. There are three main types;
from least ornate to most ornate, they are Doric, Ionic, and Corinthian
Diabase—a dark-gray to black, fine-textured igneous rock, composed of
the minerals feldspar and pyroxene
Feldspar—a common mineral composed of silica (Si), aluminum (Al), and
calcium (Ca), potassium (K), or sodium (Na): CaAl₂Si₂O₈, KAlSi₃O₈,
NaAlSi₃O₈
Fossil—remains or trace of a plant or animal preserved in a rock from
some past, prehistoric time
Granite—a light or speckled, coarse-grained igneous rock composed of
quartz, feldspar, and mica