chert sentence - chert sentence in Hindi (21-30)

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

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