minerals and rocks

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Notes and definitions from Pearson 6th grade Earth Science

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Page 1: Minerals And Rocks
Page 2: Minerals And Rocks

1. _______- a naturally occurring, inorganic, crystalline solid with a definite chemical composition

mineral

Page 3: Minerals And Rocks

A. “Naturally occurring”- made by ______- not man-made nature

B. “Inorganic”- is not nor has it ever been ________alive

Page 4: Minerals And Rocks

C. “Crystalline”- minerals are lined up in ________ patternsrepeating

D. “SOLID”

Page 5: Minerals And Rocks

E. “Definite chemical composition”- certain elements in definite proportions

Page 6: Minerals And Rocks

2. ________- a solid plane in which the atoms are arranged in orderly, repeating patterns A. cubic B. tetragonal C. hexagonal D. orthorhombic E. triclinic F. monoclinic

crystal

Page 7: Minerals And Rocks

                           

         

                             

         

                             

         

                             

         

                           

 

                             

         

                             

         

                             

         

CUBICHALITE

TETRAGONALWULFENITE

HEXAGONALBERYL

ORTHORHOMBICTANZANITE

MONOCLINICGYPSUM

TRICLINICMONTEBRASITE

Page 8: Minerals And Rocks

3. Physical propertiesA. _____- the mineral’s general colorB. _______- the color of the powdered mineralC. _______- the way light is reflected from a mineral’s surface D. ________-how tightly packed together the molecules of a mineral are;E. ________- a mineral’s resistance to being scratchedF. ________- breaks on smooth surfaces; ________- the irregular breakage of a mineral

hardness

cleavagefracture

streak

density

color

luster

Page 9: Minerals And Rocks

G. Other- _____ (salt), _____ (sulfur), ___________ (iron), and _____ (jade)

taste smell

magnetism sound

Page 10: Minerals And Rocks

4. _____- rare and highly prized mineralsgems

Page 11: Minerals And Rocks
Page 12: Minerals And Rocks

5. ______- minerals that can be 5. ______- minerals that can be mined at a profitmined at a profit

oresores

Page 13: Minerals And Rocks

6. ______and _______- two most 6. ______and _______- two most abundant elements in the Earth’s abundant elements in the Earth’s crustcrust

siliconsilicon oxygenoxygen

Page 14: Minerals And Rocks
Page 15: Minerals And Rocks

7. rock- mixture of ________, ______________, _____________, and ________________8. Rock cycle- rocks are formed by __________, _______, ____, ________, _______, _______, __________ and ___________

mineralsvolcanic glass organic matter

other materials

weathering erosion heatpressure melting coolingcompaction cementation

Page 16: Minerals And Rocks

9. Major Rock types A. IGNEOUSB. SEDIMENTARYC. METAMORPHIC

Page 17: Minerals And Rocks

10. _____________- rocks made from molten materials

______- underground melted materials____- above the ground melted materials

Igneous rocks

magma

lava

Page 18: Minerals And Rocks

A.Intrusive- formed _____ Earth’s surface and eventually uplifted and

uncovered by __________ and _______; magma cools ______; _____ crystals

B. Extrusive- formed when lava cools ___________ Earth’s surface; cools ____; _____ crystals

under

weatheringerosion slowlylarge

at or abovefast small

Page 19: Minerals And Rocks

11. sedimentary- 75% of all rocks on the _______; the only rocks that _________ on the Earth’s surface

surfaceoriginate

Page 20: Minerals And Rocks

A.A.Methods of formation:Methods of formation:1) __________ (breaking down) 1) __________ (breaking down) and _______ (the moving and _______ (the moving around) of rock particlesaround) of rock particles2) __________- pressure that 2) __________- pressure that squeezes out the air and watersqueezes out the air and water3) ___________- water that is 3) ___________- water that is dissolved with minerals “glues dissolved with minerals “glues particles together and then they particles together and then they hardenshardens

weatheringerosion

compaction

cementation

Page 21: Minerals And Rocks

B. Classification: 1) ________- broken pieces of other

rocks and shells are cemented together; shale, sandstone, conglomerate 2)________- minerals are withdrawn

from a solution or left behind after evaporation; halite and some

limestone

clastic

chemical

Page 22: Minerals And Rocks

3) _______- rock formed from once living materials

_____- formed from shells of coquina ____- formed from dead plants that have been buried and pressurized

organic

chalk

coal

Page 23: Minerals And Rocks

11. Metamorphic rock- rocks that have changed due to ____ and ________

A. ________- contains parallel bands of mineralsB. ____________- no banding; massive in form; mineral grains grow and rearrange

heatpressure

foliated

non-foliated

Page 24: Minerals And Rocks