Minerals

Question 1

Mineral

Answer 1

Natural, inorganic, solid,. Can only contain one element, or compounds of several different elements.

Question 2

3 ways a mineral can form

Answer 2

1. Crystallization from cooled magma (eg; pyrite)
2. Crystal growth in the solid state. (Changing temperature after a mineral forms.)
3. Precipitation from solution. (eg; salt from an ocean)

Question 3

Silicates

Answer 3

• Feldspars (65%)
• Quartz (15%)
• Most common mineral in earths crust (95%)
• Forms a tetrahedron

Question 4

How are silicates classified?

Answer 4

1. Linking of the tetrahedral

2. Composition

Question 5

Ferromagnesian

Answer 5

• Fe/Mg-rich
• cations that bind silica tetrahedron together
• Dark minerals (black, brown, green)

Question 6

Aluminosilicate

Answer 6

Al/Si-rich

Question 7

Quartz formula

Answer 7

SiO2 (it is a feldspar)

Question 8

Silicate Minerals

Answer 8

Olivine, Pyroxene group, Amphibole group, Mica, Feldspar, Quartz

Question 9

First minerals to crystallize out of magma (form at the highest temperature)

Answer 9

Olivine, Pyroxene, amphiboles.

extremely easy to weather

Question 10

Non-Silicates Classification

Answer 10

• Chemical composition of the anion

- Type of Cation

Question 11

Examples of Non-Silicates

Answer 11

Halite, Ag, Au, Cu, Pyrite

Question 12

what is a Native element?

Answer 12

An element composed of one element

Question 13

Carbonates

Answer 13

Have the carbonate anion

MINERALS CANNOT BE CHARGED

Question 14

Hydroxides and Oxides

Answer 14

ferric hydroxide [Fe(OH)3]
hematite [Fe2O3]
magnetite [Fe3O4]
gibbsite [Al(OH)3]

Question 15

What is Mohs Scale

Answer 15

what we use to determine how readily a mineral scratches