MINERAL REVIEW
WHAT IS A MINERAL? Occurs in nature Inorganic (not made by something living) Solid Crystal shape
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
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
How did we identify minerals? Color Luster Streak Hardness Cleavage/Fracture Density Special Properties
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
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
WHAT IS THE ORDER OF HARDNESS TESTS WE USED IN LAB?? Fingernail Copper Penny Steel Nail Glass
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
GRID THE MASS OF ROCK PICTURED.
GRID THE MASS OF ROCK PICTURED. 5 5
GRID THE VOLUME OF ROCK PICTURED.
GRID THE VOLUME OF ROCK PICTURED. 125 ml - 100 ml = 25 ml3 2 5
GRID THE DENSITY OF ROCK PICTURED.
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
GRID THE DENSITY OF ROCK PICTURED. Mass ÷ Volume D = 55 g ÷ 25 ml3 2 2 D = 2.2 g/ml3