Across
- 5. non foliated metamorphic rock commonly used for sculpture and as a building material a metamorphosed limestone
- 6. a classic sedimentary rock composed mostly of sand-sized particles
- 7. an igneous rock which sometimes contains diamonds
- 9. light coloured highly vesicular volcanic rock which floats on water
- 10. a soft, white, porous sedimentary rock made of calcium carbonate
Down
- 1. a fine grained, foliated, homogeneous, weakly metamorphic rock a low grade metamorphic rock formed from shale or silts
- 2. sedimentary rocks made of calcium carbonate
- 3. common type of intrusive, igneous rock with granular structure
- 4. a combustible sedimentary rock composed primarily of carbon
- 8. a magnesium- and iron-rich extrusive igneous rock