Minerals Test

Mineral Properties

100

True or False: Color alone can be used to identify a mineral.

False

200

These terms are used to describe what mineral property?

Shiny, earthy, waxy, pearly, metallic

Luster

300

Mohs hardness scale is used to do what?

Describe and compare the hardness of minerals

400

This can be found by rubbing a mineral on a porcelain tile. 

Streak

500

Mass divided by volume is

density

Formation of Minerals

100

Describe how large crystals form

Crystallization of magma deep beneath the earth's surface for thousands of years

200

Explain how small crystals form

Crystallization of lava near the earth surface that happens quickly 

300

Describe 2 ways in which minerals are formed

Magma/lava cools producing crystals

Hot water solutions evaporate leaving crystallized minerals

400

Give an example of each: a mineral formed from magma and a mineral formed from evaporation

Magma: Silver

Evaporation: Halite

500

What is a vein?

A narrow channel or slab of rock vastly different than the surrounding rock

Mining

100

What is an ore?

Rock that contains a metal or economically useful mineral

200

____________ is when an ore is melted to separate the useful metal from other elements

Smelting

300

_________ mine starts near the surface and extends deep underground

Open Pit

400

________ mine occurs in veins

Shaft

500

__________ mine is exposed on the surface

Strip

Vocabulary

100

Alloy

A solid mixture of 2 or more metals

200

Which mineral is used in making glass?

Quartz

300

Explain the difference between cleavage and fracture

Cleavage- Clean break

Fracture- Uneven break

400

What is slag?

After heating the ore, it is the impurities left in the ore combined with limestone

500

List at list 4 things that classify a substance as a mineral

Occurs naturally

Inorganic

Solid

Crystal structure

Definite chemical compound