Rock Roundup

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Across
  1. 7. matter Altered remains of ancient organisms
  2. 8. Fine layers in sedimentary rocks and rock beds
  3. 11. Formed from melted rock deep in the earth
  4. 12. Formed from other rocks changed by heat and pressure
  5. 13. Sediments compact under pressure, expel fluids and become rock
  6. 14. Sedimentary bedding pattern with alternating layers of mud and sand
  7. 17. Measure of ability of a rock to transmit fluid
  8. 18. Common igneous rock used in building, can sometimes contain quartz, mica, and feldspar
Down
  1. 1. Fine grain laminated sedimentary rock that occurs in sheets and is fissile
  2. 2. fracture Does not follow natural planes of separation, contains smooth curved surfaces that resemble a seashell
  3. 3. Lithified sedimentary rock consisting of 2mm or larger clasts and a matrix
  4. 4. Lithified sedimentary accumulation of sand sized grains
  5. 5. Chunks of rock that broke from preexisting rock through physical weathering
  6. 6. Measure of ability of a rock to hold fluid
  7. 9. Formed from layers of sand, silt, dead plants, and animals
  8. 10. Measure of ability of a rock to change under stress
  9. 15. Micro or crypto-crystalline sedimentary rock that is opaque and used for stone tools
  10. 16. Material in which something is imbedded