Mineral Properties
Formation of Minerals
Mining
Vocabulary
100
True or False: Color alone can be used to identify a mineral.
False
100
Describe how large crystals form
Crystallization of magma deep beneath the earth's surface for thousands of years
100
What is an ore?
Rock that contains a metal or economically useful mineral
100
Alloy
A solid mixture of 2 or more metals
200
These terms are used to describe what mineral property?

Shiny, earthy, waxy, pearly, metallic

Luster
200
Explain how small crystals form
Crystallization of lava near the earth surface that happens quickly 
200
____________ is when an ore is melted to separate the useful metal from other elements
Smelting
200
Which mineral is used in making glass?
Quartz
300
Mohs hardness scale is used to do what?
Describe and compare the hardness of minerals
300
Describe 2 ways in which minerals are formed
Magma/lava cools producing crystals

Hot water solutions evaporate leaving crystallized minerals

300
_________ mine starts near the surface and extends deep underground
Open Pit
300
Explain the difference between cleavage and fracture
Cleavage- Clean break

Fracture- Uneven break

400
This can be found by rubbing a mineral on a porcelain tile. 
Streak
400
Give an example of each: a mineral formed from magma and a mineral formed from evaporation
Magma: Silver

Evaporation: Halite

400
________ mine occurs in veins
Shaft
400
What is slag?
After heating the ore, it is the impurities left in the ore combined with limestone
500
Mass divided by volume is
density
500
What is a vein?
A narrow channel or slab of rock vastly different than the surrounding rock
500
__________ mine is exposed on the surface
Strip
500
List at list 4 things that classify a substance as a mineral
Occurs naturally

Inorganic

Solid

Crystal structure

Definite chemical compound

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