Scrabble & Words with friends points
- siltstone is a valid Scrabble US word with a point value of 9
- siltstone is a valid Scrabble UK word with a point value of 9
- siltstone is a valid Words with friends word with a point value of 11
Definition of siltstone
- a fine-grained sandstone of consolidated silt (noun)
See definition of siltstone in Merriam Webster