About the Calcareous siltstone, FGDC 617 hatch pattern
Calcareous siltstone lithology symbol, rows of fine dots and dashes with short ticks. FGDC geologic map lithology pattern 617, 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.