| 21. | Chert and flint nodules are often found in beds of limestone and chalk.
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| 22. | This chert preserved early plants in cellular detail, petrified in volcanic springs.
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| 23. | Pedernal is the source of a chert used by the prehistoric Gallina people.
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| 24. | Raukura Point, near Kawakawa Bay is a good place to see chert.
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| 25. | It is found along with smaller amounts of chert, and black schist.
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| 26. | Fossils were found in the Rhynie chert, Scotland.
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| 27. | The cherts chemical composition nearly approaches 100 % silica.
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| 28. | It is also one of the most common fossils in the Gunflint chert.
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| 29. | Chert is common to abundant within the Middle Member.
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| 30. | These rock fragments include chalky-white chert derived from the middle member.
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