About the Igneous rock (6th option), FGDC 726 hatch pattern
Igneous rock (6th option) lithology symbol, scattered crosses with tick marks. FGDC geologic map lithology pattern 726, 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.