True or False
Cleavage is when a mineral breaks into irregular pieces.
False- Fracture
What is used to measure the hardness of a mineral?
Mohs Scale
How are minerals different from rocks?
Minerals have all four characteristics, rocks have 2
Igneous rocks are formed from what?
Molten rock/magma that has cooled
Foliation in rocks looks like what?
Minerals flatted and in bands
Moh’s scale measures hardness where 1 is soft and 10 is hard.
True
The way that light reflects off of a mineral is called what?
Luster
A substance that forms in nature, is inorganic, is solid, and has a definite chemical makeup is called what?
Mineral
What are igneous rocks classified by?
mineral composition and size of minerals
Metamorphic rocks form from _____ and _______
Heat and pressure
Rocks have a repeating, 3-D, orderly pattern of atoms.
False- Crystal
What is the tendency for minerals to break into irregular shapes?
Fracture
What is an element?
Something that cannot be broken down into smaller substances- one type of atom
What are characteristics of intrusive rocks?
Large Crystals slow cooling time
Sedimentary rocks form from what?
When sediments get pressed or cemented together
How much a mineral is worth is an identification property.
False- any of the other ways to identify would work to correct this statement
How is color of streak found?
Scraping mineral across surface and looking at the powder left behind
What does inorganic NOT have?
Carbon
What are characteristics of extrusive rocks
Small crystals, short cooling time
The oldest layer of sedimentary rocks are where?
The bottom
Marble is an example of a metamorphic rock.
True
What is the tendency of a mineral to break into flat surfaces or pieces?
Cleavage
What are the four characteristics of minerals
1. Formed in nature
2. Inorganic
3. Solid
4. Definite chemical makeup
5. Crystal Structure
What is the original sedimentary or igneous rock called?
Parent Rock
______has dead wood, bark, and leaves formed millions of years ago
Coal