Across
- 1. a hard, sedimentary cryptocrystalline form of the mineral quartz, categorized as a variety of chert.
- 3. is more porous and its density, metamorphic rock, higher temperatures and pressures, It is formed by the metamorphosis of granite, or sedimentary rock.
- 6. rock and mineral fragment that are loose in water
- 7. a sedimentary rock Most limestone's form in shallow, calm, warm marine waters
- 11. igneous rock, associated with mountain ranges
- 12. they can change into new rocks without erosion or melting
- 14. the individual particles in a rock
- 15. a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine.
- 17. sedimentary rock composed of mud that is a mix of flakes of clay minerals
- 18. rock that erupts onto earths surface
Down
- 2. most abundant rocks in earth,most form deep below earths surface, and some on earths surface]
- 4. sedimentary rock composed mainly of sand-sized mineral particles or rock fragments.
- 5. a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth.
- 8. an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar, biotite, hornblende, and/or pyroxene.
- 9. a mafic extrusive igneous rock formed from the rapid cooling of magnesium-rich and iron-rich lava More than 90% of all volcanic rock on Earth is made of this.
- 10. naturally occurring solid mixture composed of minerals, smaller rock fragments, organic matter, or glass
- 13. a metamorphic rock composed of recrystallized carbonate minerals
- 16. molten rock when it is inside the earth
- 17. a fine-grained,metamorphic rock comes from an original shale-type sedimentary rock