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Sedimentary Rock Gallery Mystery rock #1. Clastic or nonclastic? Clastic Grain size? Fine-grained Rock name? SHALE! This is the only sedimentary rock that can be scratched with your fingernail!. Mystery rock #2. Clastic or nonclastic? Clastic Grain size? Fine-grained Rock name?
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Sedimentary Rock GalleryMystery rock #1 • Clastic or nonclastic? Clastic • Grain size? Fine-grained • Rock name? SHALE! • This is the only sedimentary rock that can be scratched with your fingernail!
Mystery rock #2 • Clastic or nonclastic? Clastic • Grain size? Fine-grained • Rock name? SILTSTONE!
Mystery rock #3 • Clastic or nonclastic? Clastic • Grain size? Fine-grained • Rock name? SANDSTONE!
Mystery rock #4 • Clastic or nonclastic? Clastic • Grain size? Coase-grained • Rock name? CONGLOMERATE! Rounded clasts
Mystery rock #5 • Clastic or nonclastic? Clastic • Grain size? Coarse-grained • Rock name? BRECCIA! Angular clasts
Mystery rock #6 • Clastic or nonclastic? Bioclastic • Grain size? Fine-grained • Rock name? FOSSIL LIMESTONE!
Mystery rock #7 • Clastic or nonclastic? Crystalline • Grain size? Fine-grained • Rock name? ROCK GYPSUM!
Mystery rock #8 • Clastic or nonclastic? Crystalline • Grain size? Coarse-grained • Rock name? ROCK SALT!