There are 3 solutions. The longest is CRYSTALLOGRAPHY with 15 letters, and the shortest is GEOLOGY with 7 letters.
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Solutions are between 7 and 15 letters long.
| Clue | Answers | |
|---|---|---|
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| Study of origin, structure, and composition of rocks | ||
| STUDY of rocks | ||
| ROCKS, study of | ||
| GEOLOGY, subject of | ||
| study of the composition, origin, structure, and formation of rocks | ||