Posted: March 28th, 2023
Minerals
question
List and number the 8 different properties used to identify minerals.
answer
Hardness, Color, Streak, Luster, Density, Crystal Systems, Cleavage and Fracture.
question
Which mineral on the scale is the hardest?
answer
Diamonds are the hardest.
question
Which mineral is the softest on the scale?
answer
Talc is the softest on the scale.
question
How do you perform the streak test?
answer
You can observe a streak by rubbing a mineral against a piece of unglazed tile called a streak plate.
question
Which mineral luster would “seem” to be the smoothest?
answer
Glassy, and waxy.
question
Which mineral has a density of less than 4.0 and a hardness of less than 3?
answer
Sulfur mineral
question
What’s the difference between cleavage and fracture regarding minerals?
answer
The difference is a mineral that splits easily is a Cleavage. A Fracture is when the mineral breaks apart in an irregular way.
question
How are they similar? cleavage and fracture
answer
They both are something that happens when a mineral breaks.
question
Some minerals have special properties. List a few special properties.
answer
Fluorescence, Uraninite, Calcite.
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