Slate
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About Slate
As a Commodity:
i. A fine-grained rock displaying strong slaty cleavage and hence can be split into slabs and thin plates. Most slate was formed from shale during low grade regional metamorphism. Usually gray to black, sometimes green, yellow, brown, or red. Slates are composed mostly of quartz, micas, chlorite, with minor hematite, clays, and other minerals.
Ref: AGI
ii. A coal miner's term for any shale accompanying coal; also, sometimes the equivalent of bone coal.
Ref: AGI
Ref: AGI
ii. A coal miner's term for any shale accompanying coal; also, sometimes the equivalent of bone coal.
Ref: AGI
Classification of Slate
Sub-divisions of Slate
Synonyms of Slate
Other Language Names for Slate
German:Tonschiefer
Norwegian:Skifer
References for Slate
Reference List:
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Fettes et al. (2007) Metamorphic Rocks - A Classification and Glossary of Terms. Cambridge University Press
Neuendorf, Klaus K.E., Mehl, James P. Jr., and Jackson, Julia A. (Editors) (2017) Glossary of Geology. Fifth Revised edition. American Geological Institute (abbreviated as AGI).
Internet Links for Slate
mindat.org URL:
https://www.mindat.org/min-48638.html
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Please feel free to link to this page.
Search Engines:
Caddo Gap, Fancy Hill mining district, Montgomery Co., Arkansas, USA