About the Fossiliferous bedded chert, FGDC 651 hatch pattern
Fossiliferous bedded chert lithology symbol, interlocking lens shapes with crescents. FGDC geologic map lithology pattern 651, 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.