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MINERAL REVIEW
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WHAT IS A MINERAL? Occurs in nature
Inorganic (not made by something living) Solid Crystal shape
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HOW MANY KNOWN MINERALS??
Minerals are…. The building blocks of rocks!! Remember the granite….. Black=Mica Pink=Feldspar White=Quartz HOW MANY KNOWN MINERALS?? 2,400
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What is the difference between silicates and non-silicates??
Silicates are made of silicon and oxygen, but Non-Silicates are not!! WHAT IS THE DIFFERENCE BETWEEN ELEMENTS AND COMPOUNDS?? Elements are substance that can not be broken down into a simpler substance by chemical means Compounds are substances made of 2 or more different atoms that can be chemically bonded
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How did we identify minerals?
Color Luster Streak Hardness Cleavage/Fracture Density Special Properties
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Match the property to the definition
Atoms arranged in a pattern Mass divided by volume Color of the mineral powder The way a mineral breaks The way the mineral reflects light The various colors of a mineral Magnetism, smell, fluorescence The ability to resist being scratched Color Luster Streak Cleavage/Fracture Hardness Density Crystal Special Property
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WHAT IS THE DIFFERENCE BETWEEN CLEAVAGE AND FRACTURE BREAKS??
Cleavage breaks are along a smooth flat surface Fracture breaks are along a curved/irregular surface
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WHAT IS THE ORDER OF HARDNESS TESTS WE USED IN LAB??
Fingernail Copper Penny Steel Nail Glass
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What is needed to calculate density?
MASS How do you determine mass? Use the triple beam balance VOLUME How do you determine volume? Cubes-L x W x H Irregular – graduated cylinder
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GRID THE MASS OF ROCK PICTURED.
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GRID THE MASS OF ROCK PICTURED.
5 5
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GRID THE VOLUME OF ROCK PICTURED.
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GRID THE VOLUME OF ROCK PICTURED.
125 ml - 100 ml = 25 ml3 2 5
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GRID THE DENSITY OF ROCK PICTURED.
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GRID THE DENSITY OF ROCK PICTURED.
Mass = 55 g Volume = 25 ml3 Density = Mass ÷ Volume D = 55 g ÷ 25 ml3 D = 2.2 g/ml3
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GRID THE DENSITY OF ROCK PICTURED.
Mass ÷ Volume D = 55 g ÷ 25 ml3 2 2 D = 2.2 g/ml3
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