砂岩

Noun

 * 1) sandstone

Etymology 1
Ultimately from. Uses the kan'on reading, suggesting a later borrowing. Compare modern 🇨🇬 reading saa1 ngaam4.

Noun

 * 1)  sandstone
 * 2) grit

Etymology 2
Appears to be a shift from sagan above. Less common. Uses the goon reading of sha for the character.

Noun

 * 1)  sandstone