Minerals
If a solid is found in nature and is inorganic is it a mineral?
NO, they don’t have crystals
What is luster?
How a mineral reflects light, how shiny it is
What is an element?
A substance that can not be broken down.
List the 2 types of mining.
Strip or Surface mining-
Subsurface or deep mining.
What is graphite?
The minerals in pencils
List the two big groups of minerals.
Silicate and Non silicate.
What is cleavage?
Smooth flat straight break
What is a compound?
A substance that is made up of two or more elements.
What is an ore?
Large Pure mineral deposits that can be mined.
What mineral is used in drywall?
Gypsum
What is a native element?
A mineral made of one element
What is fracture?
A break that is curved, jagged, or irregular.
What is a crystal?
Solid with repeating patterns of atoms
What does the EPA say a finished mine must do?
The site must be reclaimed- put back!
What is halite?
Salt
What is a crystal?
Solid with repeating patterns of atoms
How do you test for streak?
Rub the mineral against a tile and get a powder.
Define density.
The amount of matter- it is mass divided by volume.
How is surface mining done and what does it create?
They remove the soil to get to the mineral they make pits
What are some uses for copper?
Pennies, wire, statue, and roofs
Name the 4 questions to determine if a substance is a mineral
Is it a solid
Is it non-living
Does it have crystals
Is it found in nature
Why is streak more reliable than color?
Streak is not affected by impurities like color is.
What does inorganic mean and what is the opposite of it?
Inorganic- Non Living and Organic means living
What is subsurface mining and what must it have?
Deep underground mining has to have tunnels or shafts.
What are some uses for diamonds?
Jewelry, cutting tools, and computers