Materials
Chert
Sedimentary Rocks
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Chert is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz. A related silica variety found within the rock, chalcedony, is a microfibrous form of quartz.
Facts
Formation ClassSedimentary, chemical (composed of microcrystalline or cryptocrystalline quartz) 1 Cross-Tradition Connections
Associated With
Host rock: chert occurring within chalk is conventionally distinguished by the name flint.
Host rock: chert most commonly occurs as nodules within limestone.
In Discipline
Sources
1. Chert (Wikipedia)
Wikimedia FoundationLead sectionQuote, Lead section
a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz.
1. Chert (Wikipedia)
Wikimedia FoundationAssociated With: Chalk, Lead section, occurrence sentenceQuote, Associated With: Chalk, Lead section, occurrence sentence
Where chert occurs in chalk or marl, it is usually called flint.
1. Chert (Wikipedia)
Wikimedia FoundationAssociated With: Limestone, Nodular chert sectionQuote, Associated With: Limestone, Nodular chert section
Nodular chert is most common in limestone but may also be found in shales and sandstones.
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