FLINT

Flint

Flint is a hard, sedimentary cryptocrystalline form of the mineral quartz, categorized as a variety of chert. It occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones. Inside the nodule, flint is usually dark grey, black, green, white, or brown in colour, and often has a glassy or waxy appearance. A thin layer on the outside of the nodules is usually different in colour, typically white and rough in texture. From a petrological point of view, "flint" refers specifically to the form of chert which occurs in chalk or marly limestone. Similarly, "common chert" occurs in limestone.

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flint

Noun

  1. A hard, fine-grained quartz that fractures conchoidally and generates sparks when struck.
  2. A piece of flint, such as a gunflint, used to produce a spark.
  3. A small cylinder of some other material of the same function in a cigarette lighter, etc.

Verb

  1. To furnish or decorate an object with flint.


The above text is a snippet from Wiktionary: flint
and as such is available under the Creative Commons Attribution/Share-Alike License.

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