About the Igneous rock (1st option), FGDC 721 hatch pattern
Igneous rock (1st option) lithology symbol, plus signs in staggered rows. FGDC geologic map lithology pattern 721, for map and section drawings.
Kind: a repeated motif that does not fill the plane.
The download is one AutoCAD .pat file. Downloads are metered; a Hatchy Pro license lifts the limit.