minerals naturally formed, inorganic solids that have a crystalline structure. you can tell if an...
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Minerals of the Earth’s Crust
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Minerals naturally formed, inorganic solids that have a crystalline
structure.
You can tell if an object is a mineral by asking 4 questions:
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1. Is it a solid?
Minerals cannot be gases or liquids.
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2. Is it a non-living material?
A mineral is inorganic, meaning it isn’t made of living things.
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3. Does it have a crystalline structure?
Minerals are crystals, which have a repeating inner structure that is often reflected in the shape of the crystal.
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4. Is it formed in nature?
Crystalline materials made by people aren’t classified as minerals.
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Minerals naturally formed, inorganic solids that have a crystalline
structure.
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To understand what a crystalline structure is, we need to understand elements.
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Element: A substance that cannot be separated or broken
down into simpler substances by chemical means.
Each element is made of only 1 kind of atom.
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Some minerals are made are made of compounds of several different
elements
Compound: A substance made up of atoms of two or more elements joined by chemical bonds
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Minerals naturally formed, inorganic solids that have a crystalline
structure.
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Crystal:A solid whose atoms are arranged in a
definite pattern. A crystal’s shape is determined by the arrangement of the
atoms within the crystal
All minerals can be grouped into crystal classes according to the kinds of crystals
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Minerals are divided into 2 groups based on their chemical composition
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Silicate minerals:Minerals that contain a combination of silicon, oxygen, and one or more metals
Silicon and Oxygen usually combine with metals like aluminum, iron, magnesium, and potassium.
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Some minerals are made are made of compounds of several different
elements
Compound: A substance made up of atoms of two or more elements joined by chemical bonds