Mineral Tests
Characteristics
Mineral Formation
Resources
Mining
100
The color of the mineral's powder is called its ___________________
Streak
100
A mineral must be formed by a (A) man-made process (B) natural process.
(B) natural process
100
Slow cooling magma = _______________ crystals
large
100
A hard, colorful mineral that has a brilliant or glassy luster is a _____________________
gemstone
100
This type of mine is a network of tunnels that extend deep into the ground, following veins of ore.
shaft mine
200
The term used to describe how light is reflected from a mineral's surface is ____________________.
Luster
200
The reason a glass of water is not a mineral is because water is not a _______________.
Solid
200
Lava at the Earth's surface or ___________________ below the Earth's surface cools and hardens to form mineral crystals.
magma
200
Rocks that contain a useful mineral that can be mined and sold for a profit are called ___________________.
ores
200
A narrow channel or slab of a mineral that is different from the surrounding rock is called a __________________.
vein
300
A mineral that does not split evenly or regularly apart has ________________.
Fracture
300
A mineral is inorganic, which means that it contains...
No materials that were once part of living things.
300
Minerals, like halite, may form on the Earth's surface when...
solutions (like seas, lakes, oceans) evaporate
300
A solid mixture of two or more elements, at least one is a metal, is a(n) ________________.
alloy
300
Miners use earthmoving equipment to dig a huge hole to create this type of mine.
Open pit mining
400
The repeating pattern of a mineral's particles forms a solid called a ___________________. This pattern repeats itself throughout the mineral.
Crystal or Crystal Structure
400
If you broke a mineral into tiny pieces, each piece would have the same...
Crystal Structure
400
Minerals form deep inside Earth's crust by...
crystallization of melted (molten) materials.
400
The process that removes the metal from the ore is called ___________________.
smelting
400
An ore that is near the surface is removed by this type of mining.
Strip mining
500
The hardest mineral on the Mohs hardness scale is _______________, and the softest mineral is _________________. (Need em' both)
Hardest= diamond Softest= talc
500
Although steel comes from substances found in the Earth's crust, it is not a mineral because...
It is not naturally occuring
500
Which factor affects the size of mineral crystals formed in magma? What determines if the crystals are large or small?
Rate of cooling
500
(**Not on test**) When smelting iron ore, baked coal, or ________________, is used to heat the iron ore to extremely high temperatures.
coke
500
Who searches for ore deposits?
Prospectors
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