MUDSTONES
12
Scrabble
15
WWF
M(3) U(1) D(2) S(1) T(1) O(1) N(1) E(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- A fine-grained sedimentary rock whose original constituents were clays or muds.
Source: Wiktionary