Earth Science: Chapters 3-4
Calcite
A mineral which bubbles when it comes in contact with hydrochloric acid because the calcite releases.
Moh's Hardness Scale
A mineral's hardness with respect to other minerals can be determined by this scale.
Carbonates
A type of mineral composed of Ore or more metal.
Silicates
A type of mineral composed of Oxygen and Silicon.
Oxides
A type of mineral composed of Oxygen and a metal.
Gem
A valuable mineral prized for its rarity and beauty.
Hardness
Minerals that break along jagged edges.
Magnetism
The special property that lodestone has.
Luster
The way a mineral reflects light from it's surface.
Color
This is caused by the presence of different trace elements.
Underground Mining
This is how you remove ore from deep within the Earth's crust.
Double Refraction
This is when light is bent in two directions.
Open Pit Mines
This is where you obtain ore near Earth's surface.
The appearance of milky quartz is caused by ___
it's hardness.
Identification tests for minerals are based on their ___
physical and chemical properties.
Minerals break along planes where atomic bonds are ___
weak.
Cleavage
A measure of how easily a mineral can be scratched.
Ore
A mineral that contains a useful substance that can be mined at a profit.
Texture
How a mineral feels to the touch.
Emeralds
Rubies and ____ are more valuable than diamonds.
Streak
The color of a mineral when it is broken up and powdered.
Specific Gravity
The density of a mineral expressed by the ratio of the weight of the substance to the weight of equal volume of water at 4 degrees Celsius.
Abrasive
The mineral Corundum is used as this.
Trace Elements
The presence of this can make one variety of a mineral more colorful and thus more prized than other varieties of the same mineral.
Overburden
Unwanted rock or dirt that is dug up with ore.
Fracture
When a mineral splits easily or evenly along one or more planes, such as quartz.
