Across
- 2. Is a clay sized mineral, sedimentary rock.
- 3. forms when limestone is subjected to heat.
- 8. fine grained siliceous rock.
- 9. with a ton of bubble like cavities
- 10. Tough and can break with a conchoidal fracture.
- 11. light and gray color.
Down
- 1. black or dark green
- 2. metamorphic rock, cooking slabs. may have in home.
- 4. forms when a quart rich sandstone is altered by heat.
- 5. Forms when molten cools rapidly.
- 6. Is a sedimentary rock usually found in swamps.
- 7. forms from the product of a volcanic eruption.