Sedimentary Rocks
True or False - Sedimentary rocks tend to be very hard rocks formed from the cooling of lava
False
Metamorphic rocks are made from other .
Rocks
is molten rock that reaches the surface.
Lava
Name one physical property of minerals.
Color, Luster, Cleavage, Fracture, Hardness, Streak, Shape
If a mineral has a 1 on the Moh's hardness scale, then that means that it is .
Soft
Sedimentary rock is formed in .
Layers
Explain how metamorphic rocks are formed.
Rocks that are changed by heat and/or pressure
How are igneous rocks formed?
Formed by magma or lava cooling below or above the earth's surface
What are the two types of luster?
Glassy and Metalic
Luster measures how a mineral reflects .
Light
Sedimentary Rocks are:
A. Formed below Earth's surface as lava
B. Formed from pieces of weathered and eroded rock
C. One type of foliated igneous rock
D. Formed from intense heat and lots of pressure
B. Formed from pieces of weathered and eroded rock
Metamorphosis stems from Greek origins, meaning .
Change
Igneous rocks formed below the surface, form when cools
Magma
Name one of the four requirements for a mineral.
1. Must be naturally occurring
2. Inorganic Substance
3. Crystalline Solid
4. Definite Chemical Composition
What is the hardest mineral?
Diamond
Sedimentary rocks are formed when press together over time and form a rock
Sediments
Metamorphic rocks change under what three conditions?
Time, Heat, Pressure
Name the two types of Igneous Rock
Extrusive and Intrusive Igneous
A mineral that only meets 3 of the 4 requirements for a mineral, is called a .
Mineraloid
Some minerals with high concentrations of Iron Oxide are .
Magnetic
Name an example of Sedimentary Rock
Limestone, Sandstone, Shale
Name an example of Metamorphic Rock
Marble, Slate
Name an example of Igneous Rock
Obsidian, Pumice, Granite
What scale is used to determine the hardness of a mineral?
Moh's Hardness Scale
What is an example of a mineraloid?
Opal