What is formed by earth's processes with no input from humans
100
Two idenfitication factors that are not enough to identify most minerals.
What is color and appearance?
100
When minerals break with uneven, rough, or jagged surfaces
What is fracture?
100
Rare and beautiful minerals that are highly prized
What is a gem?
100
Caused from liquid flowing through weaknesses in rocks and forming mineral deposits.
What are vein minerals?
200
Orderly arrangement of atoms.
What is crystalline solids.
200
The way a mineral reflects light
What is luster?
200
The man who developed a scale that compares mineral hardness.
Who is Friedrich Mohs?
200
Most gems are special types of common ___________.
What are minerals?
200
A mineral or a rock that contains a useful substance that is mined at a profit.
What is an ore?
300
The number of main characteristics of minerals.
What is four?
300
The way a mineral breaks along a smooth, flat surface
What is cleavage?
300
A specific mineral that has the unique property of showing a double image when placed on paper.
What is calcite?
300
A unit used to measure the weight of gems.
What is a carat?
300
An ore from which we get aluminum. (Hint: This mineral starts with a "b" . . .)
What is bauxite?
400
Not living
What is inorganic?
400
A measure of how easily a mineral can be scratched.
What is hardness?
400
The color of a mineral in powdered form
What is streak?
400
A gem that is sometimes used in laser lights.
What is a ruby?
400
When the aluminum oxide powder is changed to aluminum.
What is smelting?
500
Made of one or more _______________
What is elements
500
The ratio of a mineral's weight to the weight of an equal volume of water expressed as a number.
What is specific gravity?
500
A specific mineral that has a unique property of being able to attract iron filings.
What is lodestar?
500
Two of the most famous historical diamonds that have been discovered.
What are the Hope and Cullinan diamonds?
500
A metallic element found in minerals such as "ilmenite" and "rutile" that is used in many products (for example, in bicycles and golf clubs), because it is lightweight, strong, and long lasting.