Chapter 3 Outcomes

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Chapter 3 Outcomes

• Identify at least 15 minerals correctly.

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• Define and use these mineral properties to
  identify minerals.
• Color, Streak, Luster, Breakage, Hardness,
  Optical Properties, Chemical Properties, Crystal
  Shape, and Specific Gravity

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• Define gem and ore. Give examples of items made
  from gems and ores

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Chapter 3What is a Mineral?
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Minerals are

• 1. Natural
• Made in nature, by nature.

Talc
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Minerals are

• 2. Inorganic
• Not alive, never was alive, not produced by
  something living.

Shells are produced by living things. They are
NOT inorganic (theyre organic).
These material in these ceramic bowls came from
minerals. They ARE inorganic.
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Minerals are

• 3. Solid
• Minerals can form from liquids, but they cant be
  liquid.

Not a mineral.
Can be a mineral.
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Minerals have

• 4. A definite chemical composition.
• Each mineral is made of a particular mix of
  chemical elements that is unique to that mineral.

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Minerals have

• 5. Crystalline structure.
• Orderly internal arrangement of atoms.

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To sum it all up

• Minerals are naturally occuring, inorganic solids
  with a definite chemical composition and
  crystalline structure.

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How are minerals different from rocks?

• Minerals must meet all 5 criteria in order to be
  considered a mineral.
• Minerals are pure substancesonly that one
  chemical is present in a mineral.

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• Rocks can be mixtures of minerals (not pure
  substances), can be organic or inorganic, and
  dont have to have crystalline structures.

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Rock or Mineral? Activity

• 1. Fold a piece of paper in half.
• 2. Label 1 side ROCKS and the
• other MINERALS.
• 3. Divide the samples in the box into groups
  rock or mineral.
• 4. Record on the paper sample number and
  characteristics that are true for that group of
  samples.