About the Breccia (1st option), FGDC 605 hatch pattern
Breccia (1st option) lithology symbol, angular outlined fragments among fine dots. FGDC geologic map lithology pattern 605, 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.