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Onyx Marble
From Wikipedia, the free encyclopedia
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The Onyx Marble is a geologic formation in Arizona. It preserves fossils dating back to the Neogene period.
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
- Onyx stone comprises different minerals, including quartz, feldspar, and agate.
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