About the Cherty dolostone or dolomite, FGDC 648 hatch pattern
Cherty dolostone or dolomite lithology symbol, slanted-joint courses with a few ovals. FGDC geologic map lithology pattern 648, 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.