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What are minerals?
1) Solid, 2)Inorganic, and 3) Natural
What are three main kinds of rocks?
igneous, sedimentary, metamorphic
Do humans need minerals to survive?
Yes
What is "luster"?
How shiny a mineral is
What are some examples of minerals?
Salt, Gold, Pyrite (answers may vary)
True or False: Minerals can be precious gems.
Yes
What is the hardness of the mineral?
How difficult it is to scratch it
What's the highest hardness on Mohs Hardness scale?
10
True or False: Diamond is NOT the hardest mineral.
False
What scale measures the hardness of a mineral?
The Mohs Hardness Scale
Can you name some minerals we need for our body?
Calcium, iron, magnesium, potassium, sodium
Give 2 examples of how minerals can be used
To make cement, to make watches, to make toasters, to make coins
A flat surface is called cleavage. An uneven surface is called a ______
Fracture
When a mineral breaks and there is a smooth surface
Cleavage
