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Minerals2018
Minerals review
Question | Answer |
---|---|
What are the 5 characteristics of a mineral? | Crystal structure, definite chemical composition, solid, inorganic, and naturally occurring. |
In a mineral, the particles that line up in a repeating pattern form what? | A crystal |
This is how a mineral reflects light | Luster |
In order to test a mineral's powder, you should use...... | An unglazed tile |
Minerals form from..... | Magma, evaporation of solutions, and hot water solutions. |
What is fracture? | the way a mineral looks when it breaks apart in an irregular way. |
What is an element? | a substance composed of a single kind of atom |
What is a compound? | substances in which the 2 or more elements are chemically joined |
When a mineral glows under ultraviolet light, it is called...... | fluorescence |
What is smelting? | the process by which ore is melted to separate the useful metal from other elements |
What is luster? | the way a mineral reflects light from its surface |
Something that is not formed from living things or the remains of living things is..... | inorganic |
The mineral's ability to split easily along flat surfaces is called.... | cleavage |
What is a gemstone? | a hard, colorful material that has a brilliant, glossy luster |
The color of the mineral's powder is called..... | streak |
Describe naturally occurring | In order to be a mineral, it must be naturally occurring, meaning that it must be found in nature and not manufactured by people. |
What does it mean to be inorganic? | A mineral must be inorganic, meaning that it cannot rise from materials that were once part of a living thing. |
Explain what solid means. | It must have a definite volume and shape. |
A mineral must have a crystal structure. What does that mean? | It must have a repeating pattern of particles. |
A definite chemical composition means.... | A mineral always contains certain elements in definite proportions. |
What are the different tests you can perform to identify a mineral? | hardness, color, streak, luster, density, cleavage and fracture |
What can you use to test a mineral's hardness? | Mohs hardness scale |
What should you do to determine a mineral's density? | Use a triple beam balance to weigh it and then place the mineral in water to detrmine how much water it displaces. The displaced water is the volume. Divide the mass by the volume to find density. |