How does an igneous rock form?

From melted rock that solidifies.

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  1. From melted rock that solidifies ✔
  2. From compacted sand only
  3. From heated limestone only

Why: Igneous rock forms when rock solidifies or crystallizes from melt such as magma or lava.

Huh, didn't know that: Igneous rock forms when rock solidifies or crystallizes from melt such as magma or lava.

The dad joke
Igneous rocks know how to chill.
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References

Answer: From melted rock that solidifies. Igneous rock forms when rock solidifies or crystallizes from melt such as magma or lava.

  1. Geology en.wikipedia.org/wiki/Geology
    When a rock solidifies or crystallizes from melt (magma or lava), it is an igneous rock.
    Checked 2026-11-07.

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