Siltstone
rock · common
Quick facts
- Formula
- —
- Hardness
- 6-7
- Luster
- Dull
- Colors
- Gray, brown, red, green
Siltstone is a sedimentary rock composed mainly of silt-sized particles. It is finer than sandstone and coarser than claystone.
Look for a smooth texture and a range of earthy colors.
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Photograph your specimen on arockid.com or in RockSnap / RockID. Three free IDs a day — no card.
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