This physical property which is commonly used to observe and identify minerals is the least accurate.
What is color?
100
A mineral which is valuable do to its brightness, clarity, and color.
What is a gem?
100
The process of breaking rocks into smaller pieces called sediments.
What is weathering?
100
Rocks that are made from bits of other rocks that have been pressed together in layers
What are sedimentary rocks?
100
Rocks are made of these
What are minerals?
200
This is the measure of how easily a mineral can be scratched.
What is hardness?
200
A rock or mineral that contains useful substances and is mined for profit.
What is an ore?
200
The process of pressing sediments into layers.
What is compaction?
200
Rocks from molten material that cool above the earth's surface
What are extrusive igneous rocks?
200
These processes form igneous rocks
What are heating and cooling?
300
This is the mineral in powdered form.
What is streak?
300
Molten material that cools on or near the earth's surface.
What is lava?
300
The process of gluing layers together with minerals found in solutions that pass through rock layers.
What is cementation?
300
Rocks that form from molten material below Earth's surface
What are intrusive igneous rocks?
300
These types of rocks form from evaporation of solutions and are often associated with aquatic environments.
What are sedimentary rocks?
400
This is the way a mineral reflects light.
What is luster?
400
Molten material that is found below Earth's surface and is made of minerals, water and gases.
What is magma?
400
This process moves and carries sediments to a new location by wind and water.
What is erosion?
400
How sedimentary rocks are classified
What are grain size?
400
This scale is used to give a number value to the hardness of minerals.
What is Mohs scale?
500
This is the way a mineral breaks. Which can leave smooth flat surfaces or rough jagged surfaces.
What are cleavage and fracture?
cleavage- smooth
fracture- rough
500
This is a solid with an orderly arrangement of atoms in a repeating pattern.
What is crystal?
500
Metamorphic rocks are formed due to this.
What is heat and pressure?
500
Size of crystals found in these rocks identifies where they formed
What are igneous rocks?
500
What is an element and how many exist on the earth?
An element is a material that cannot be broken down into a simpler material and consists of only one type of atom. Earth is made of about 100 naturally occurring elements.