This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A form of sedimentary rock, similar to sandstone but coarser.

n. Same as grit, 3.

n. a hard coarse-grained siliceous sandstone

"Germoe till last century, when they were broken up for road-metal, and that they consisted of a kind of gritstone common enough to the Crowza"

sandstone