What is cleavage in a mineral?

Breakage along closely spaced parallel planes.

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  1. A salty taste
  2. Breakage along closely spaced parallel planes ✔
  3. A bright metallic shine

Why: Cleavage is breakage along closely spaced parallel planes, unlike uneven fracture.

Huh, didn't know that: Cleavage is breakage along closely spaced parallel planes, unlike uneven fracture.

The dad joke
Cleavage splits opinions, and minerals.
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References

Answer: Breakage along closely spaced parallel planes. Cleavage is breakage along closely spaced parallel planes, unlike uneven fracture.

  1. Geology en.wikipedia.org/wiki/Geology
    the latter a breakage along closely spaced parallel planes.
    Checked 2026-11-07.

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