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Flint

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Colour:
Gray, black, brown, red, ...
Hardness:
6½ - 7
A nodular grey/black chert formed as nodules in Creataceous chalk.


Classification of Flint

Mineralogy of Flint

Essential minerals - these are minerals that are required within the classification of this rock:
Silica > QuartzSiO2

Physical Properties of Flint

Waxy, Dull
Diaphaneity (Transparency):
Translucent, Opaque
Comment:
takes good polish, then vitreous luster
Colour:
Gray, black, brown, red, white and other colors due to staining
Streak:
White
Hardness (Mohs):
6½ - 7
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Splintery, Conchoidal, Sub-Conchoidal

Other Names for Flint

Name in Other Languages:
Dutch:Vuursteen
German:Feuerstein
Japanese:燧 石
Simplified Chinese:燧石

Internet Links for Flint

mindat.org URL:
http://www.mindat.org/min-6676.html
Please feel free to link to this page.
Mineral and/or Locality  
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