Metamorphic Rocks

Notes in this section

• Gneiss

  Wikimedia Commons Gneiss Metamorphic Hardness: ≈6–7 Approximate BasaltGraniteObsidianRhyolite

• Marble

  Wikimedia Commons Marble Metamorphic Hardness: 3–4 BasaltGraniteObsidianRhyolite

• Quartzite

  Wikimedia Commons Quartzite Metamorphic Hardness: 7 BasaltGraniteObsidianRhyolite

• Schist

  Wikimedia Commons Schist Metamorphic Hardness: ≈4–7 Approximate BasaltGraniteObsidianRhyolite

• Slate

  Wikimedia Commons Slate Metamorphic Hardness: ≈3–4 Approximate BasaltGraniteObsidianRhyolite

• Soapstone

  Wikimedia Commons Soapstone Metamorphic Hardness: 1–2 BasaltGraniteObsidianRhyolite

• Unakite

  Wikimedia Commons Unakite Metamorphic Hardness: ≈6–7 Approximate BasaltGraniteObsidianRhyolite