Rocks

3. it is the result of the way how minerals absorb light.
6. is the color of mineral in powdered form.
7. are natural substances consisting of aggregate minerals.
13. refers to the measure of mineral's resistance to scratching.
16. a major class of sedimentary rock that's composed of rocks formed where sand, silt, and mud are deposited.
17. another term used to refer to intrusive rocks.
18. type of rock that underwent a process called, "metamorphism".
19. composed of evaporites, precipitates, and bioclastics.
20. a major class of sedimentary rock that's composed mainly of rocks formed by minerals formerly dissolved in seawater.
21. is a naturally occurring chemical compound, usually of crystalline form and not produced by life processes.
23. scale developed by German mineralogist Frederick Mohs.
24. grains, matrix, and cement are the components of this classification of sedimentary rock.

1. is the tendency of minerals to break along planes of weak bonding.
2. cycle is the evolution of rock material under changing physical conditions at or beneath the Earth's surface.
4. main factor of regional metamorphism.
5. the meaning of the word, "sedimentation".
8. type of rock divided into two major classes namely, chemical sediments and detrital sediments.
9. is the result of a change in grain size and composition; each layer represents a distinct period of deposition.
10. can be bent without breaking, but will not return to unbent.
11. are rocks formed from solidified magma underneath the Earth.
12. another term used to refer to extrusive rocks.
14. is the level of resistance or reaction of mineral to stress such as crushing, bending, breaking, or tearing.
15. are rocks which are derived from solidified lava at or near the surface of the Earth.
18. indicates the ability of a mineral to attract or repel other minerals.
22. formed by the solidification or crystallization of magma.