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25 Cards in this Set

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Color Test
Least dependable because of impurities.
Luster Test
The way a mineral refracts light.
List the four terms used to describe a minerals luster.
Earthy, greassy, dull, and pearly.
Streak Test
The color of the residue left by a mineral when rubbed against a porcalin plate or slab.
Hardness Test
A minerals streangth.
Cleavage
Defined angles in the way a mineral breaks.
Fracture
Random breaks in a mineral.
All rocks are made of...
Minerals
Minerals are made up of at least two different types of...
Atoms
The two most common elements in the earths crust are...
Silicon and Oxygen
The two elements that make up 50% of the minerals in the earths crust are...
Quarts and Feldspar
Muscovite
Used to make windows, fake snow, and electrical insulation.
Talc
The softest mineral. It is used in talcum powder.
Pyrite
Know as fools gold, it is harder than real gold.
Galena
Is the chief ore of lead. It often contains silver.
Graphite
It is used in pencils.
Hematite
Major ore of iron.
Quartz
Also know as sand. It is used to make glass.
Gypsum
Used to make dry wall and other plaster products.
Halite
Also know as salt.
Chalcopyrite
The main copper ore.
Biotite
It is used as an insulator.
Sulfer
It is used in plant sprays, meddical shampoos, and sulfuric asid.
Magnetite
Also know as iron oxide, it is the most magnetic mineral.
Calcite
It si used in antacids, optical instruments, and is also a part of limestone.