Marble (Metamorphic)
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In plain terms
Marble is limestone that’s been “rebuilt” into a mosaic of new crystals.
Key takeaways
- Marble is metamorphosed limestone (mostly calcite/dolomite).
- It often reacts with dilute acid.
- Recrystallization can erase original fossils and bedding.
- Impurities can create color banding and veining.
- Context helps separate marble from similar-looking quartzite.