Podcast
Questions and Answers
What are the two most common elements in Earth's continental crust?
What are the two most common elements in Earth's continental crust?
Minerals are man-made substances.
Minerals are man-made substances.
False (B)
Minerals are always solid and have a definite chemical composition.
Minerals are always solid and have a definite chemical composition.
True (A)
Minerals are always found in crystalline form.
Minerals are always found in crystalline form.
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What determines the size of crystals formed during the cooling of magma?
What determines the size of crystals formed during the cooling of magma?
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What are the basic units of a mineral's chemical composition?
What are the basic units of a mineral's chemical composition?
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Which of these mineral groups is defined by a combination of silicon and oxygen?
Which of these mineral groups is defined by a combination of silicon and oxygen?
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Which mineral group contains a compound with a carbonate anion (CO3)?
Which mineral group contains a compound with a carbonate anion (CO3)?
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What kind of bond usually binds sulfur to other elements in sulfates and sulfides?
What kind of bond usually binds sulfur to other elements in sulfates and sulfides?
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What is the defining characteristic of native elements?
What is the defining characteristic of native elements?
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What are three common uses of aluminum?
What are three common uses of aluminum?
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What are three common uses of silica and quartz?
What are three common uses of silica and quartz?
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What are three common uses of copper?
What are three common uses of copper?
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What are two common uses of graphite?
What are two common uses of graphite?
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What are two common uses of diamond?
What are two common uses of diamond?
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Study Notes
Common Elements in Earth's Continental Crust
- Silicon (Si) = about 28%
- Oxygen (O) = about 47%
Mineral Characteristics
- Naturally occurring (not man-made)
- Inorganic (not alive)
- Solid
- Definite chemical composition (unique combination of elements)
- Crystalline shape (arrangement of atoms)
Mineral Formation
- Magma (crystallization) - how magma cools and where it cools determines crystal size
- near surface = small crystals
- deep underground = large crystals
- The quicker it cools, the smaller the crystals
- Crystals need heat & time (deep inside the Earth) to grow
Mineral Families (Groups)
- Based on their chemical composition
- Silicates → Contains: silicon (Si) and oxygen (O)
- Carbonates → Contains: carbonate compound CO3
- Oxides → Contains: oxygen (O) and metal
- Sulfates/Sulfides → Contains: sulfur (S) bond to other elements
- Native Elements → Contains: one element and exist in pure form
Mineral Uses
- Aluminum - transportation, packaging, cans, aircraft
- Silica and Quartz - electronics, glass, gemstones, precision instruments
- Copper - electrical, plumbing, roofing
- Graphite - pencils
- Diamonds - jewelry, drilling tools
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Description
This quiz covers essential topics related to minerals, including their characteristics, formation processes, and various mineral families. You will learn about the chemical composition that defines different minerals and how they are formed within the Earth's crust. Test your knowledge on mineral usages and their unique properties.
