Minerals and Rocks

Question 1

Cleavage of a mineral?

Answer 1

The amount of planes in the mineral.

Question 2

Hardness

Answer 2

Property that reflects strength of atomic bonding

Question 3

Common minerals in igneous?

Answer 3

Quartz, Feldspar, Mica, Pyroxene, Amphibole, Olivine

Question 4

Sedimentary rock minerals?

Answer 4

Quartz, Clay minerals, Feldspar, Calcite, Dolomite, Gypsum, Halite

Question 5

Metamorphic rocks minerals?

Answer 5

Quartz, feldspar, mica, garnet, pyroxene, kyanite

Question 6

Classification of rocks?

Answer 6

Igneous - Melting Rocks
Sedimentary - Weathering and Erosion of expose rocks
Metamorphic - rocks under high temps

Question 7

Extrusive rocks vs Intrusive rocks

Answer 7

Intrusive - Intrudes into unmelted rocks

Extrusive - Forms when magma hits the surface.

Question 8

Sedimentary rock formation

Answer 8

Created by weathering of surface rocks. Then the sediments are deposited and buried to form sedimentary rocks.

Question 9

Metamorphic rock formations

Answer 9

Oceanic Crust
Continental crust and lithosphere
Asthenosphere

Question 10

Formation of igneous rocks

Answer 10

magma rises to form igneous rocks

Question 11

Extrusive Rocks and Intrusive Rocks?

Answer 11

Extrusive - Basalt and Rhyolite

Intrusive - Gabbro and Granite

Question 12

The difference between Extrusive and Instrusive rocks?

Answer 12

Extrusive cool fast so small grains are formed. Intrusive cool slower so the grain sizes are bigger.

Question 13

What happens when magma temp decreases?

Answer 13

Materials crystallize in an ordered series while Plagioclase crystals form.

Question 14

Mechanical vs Chemical Weathering?

Answer 14

Physical erosion such as wind, water, glacier

the disintegration of rocks.

Question 15

Rate of weathering speeds up when?

Answer 15

When the materials become less stable.

Question 16

Chemical Weathering Cycle

Answer 16

Reduced weathering rate leads to increase in CO2 leads to climate warming then weathering reduces CO2, Lower CO2 climate cooling, low temp equals reduced weathering

Question 17

Name a few Sedimentary Rocks

Answer 17

Conglomerate, Sandstone, and Shale.

Question 18

Types of Metamorphism?

Answer 18

Shock or Impact
Regional (magma)
Regional high P (contacts)
Burial and Seafloor