Random
Gems
Definitions
Physical Properties
Other Facts
100
8 main minerals make up this percentage of Earth's crust
What is 98%
100
Used for lasers
What is Rubies
100
Mineral that has silicon, oxygen, and one other mineral
What is Silicate
100
How a mineral reflects light
What is Luster
100
Substance is melted to seperate it from the ore
What is Smelting
200
Used in electronics and time pieces
What is Quartz
200
Is made of carbon and oxygen
What is Calcite
200
Splitting into pieces with smooth, regular surfaces that reflect light.
What is Cleavage
200
Talc is the softest mineral on this scale.
What is Mohs scale
300
Used for industrial abrasives and cutting tools.
What is Diamonds
300
Rare and beautiful
What is Gem/Gemstone
300
How easily a mineral can be scratched
What is Hardness
300
Solutions and Magma form this.
What is minerals
400
This mineral is the purple form of quartz
What is Amethysts
400
metallic minerals deposited in weaknesses in rock
What is vein minerals
400
Ration of it's weight compared with the weight of an equal value of water
What is Specific Gravity
400
A durable, lightweight metal derived from minerals such as ilmenite and rutile
What is titanium
500
This diamond is 45.52 carats
What is Blue Hope diamond
500
Naturally occuring, inorganic solid with a definite chemical composition, and an orderly arrangment of atoms
What is Mineral
500
Splitting into pieces with rough, jagged surfaces
What is Fracture
500
Ilmenite and rutile
What is an iron ore
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