- 2078 Bhadra · 2 marks
Sedimentary versus igneous stones
Short answer
Igneous stones form from cooling magma, are non-stratified, hard, and lack natural beds and fossils. Sedimentary stones originate from cemented sediments, are stratified, softer, have natural beds, and may contain fossils like sandstone and limestone.
Differentiate between sedimentary and igneous stones.
| Basis | Igneous stones | Sedimentary stones |
|---|---|---|
| Origin | Cooling and solidification of molten magma | Deposition and cementation of sediments |
| Structure | Non-stratified, crystalline | Stratified, layered |
| Hardness | Hard and strong | Moderately hard or soft |
| Natural bed | Absent | Present |
| Fossils | None | May contain fossils |
| Examples | Granite, basalt | Sandstone, limestone |
✓ Answer checked by Claude Opus 5.5 (high effort)
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