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Rocks and MineralsPO
vocab.
Question | Answer |
---|---|
the ability of a mineral to resist being scratched | hardness |
special patterns or shapes that make up each mineral and these patterns help us tell mineral apart | crystals |
the way a mineral breaks | cleavage |
a natural, non-living solid found in the Earth that combines to form rocks with a definite chemical structure | minerals |
valuable minerals like diamonds, opals, and rubies that are often used in jewelry | gemstones |
the way light is reflected from a mineral's surface | luster |
is a natural solid that is usually a mixture of minerals | rocks |