
1) Argillaceous rock 2) Brick ingredient 3) Clay rock 4) Clay-based rock 5) Clayey rock 6) Claylike rock 7) Cleavable rock 8) Common fossil rock 9) Compressed clay 10) Compressed clays 11) Easily cleaved rock 12) Easily split rock 13) Exclusively Saxon word 14) Exclusively Anglo word 15) Fine-grained rock
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https://www.crosswordclues.com/clue/shale

a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.
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http://en.wikipedia.org/wiki/Glossary_of_geology

• (v. t.) To take off the shell or coat of; to shell. • (n.) A shell or husk; a cod or pod. • (n.) A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.
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http://thinkexist.com/dictionary/meaning/shale/

any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles. Shale is the most abundant of the ... [14 related articles]
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http://www.britannica.com/eb/a-z/s/74

A rock formed by consolidation of clay, mud, or silt, having a laminated structure and composed of minerals essentially unaltered since deposition.
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http://www.coaleducation.org/glossary.htm

An oil bearing rock found at Kimmeridge in Dorset. Pieces turned on a lathe to make bracelets and bangles.
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http://www.encyclo.co.uk/local/20686

A fine-grained detrital sedimentary rock, formed by the consolidation (esp. by compression) of clay, silt, or mud. It is characterized by finely laminated structure, which imparts a fissility approximately parallel to the bedding, along which the rock breaks readily into thin layers and that is commonly most conspicuous on weathered surfaces, and b...
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http://www.encyclo.co.uk/local/22047

Clay which has been subjected to high pressures until it has hardened.
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http://www.encyclo.co.uk/local/22187

A sedimentary rock composed of detrital sediment particles less than 0.004 millimeter in diameter. Shales tend to be red, brown, black, or gray, and usually originate in relatively still waters.
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http://www.encyclo.co.uk/local/22291

a clastic sedimentary rock that is made up of clay-size (less then 1/256 millimeter in diameter) wea
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http://www.encyclo.co.uk/local/22392

a fine-grained sedimentary rock composed mostly of consolidated clay or mud. Shale is the most frequently occurring sedimentary rock.
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http://www.encyclo.co.uk/visitor-contributions.php
Shale noun [ Anglo-Saxon
scealy ,
scalu . See
Scalme , and confer
Shell .]
1. A shell or husk; a cod or pod. 'The green
shales of a bean.'
Chapman. 2. [ German
shale .]
(Geol.) A fine- grained sedimentary rock of a thin, lamin...
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http://www.encyclo.co.uk/webster/S/80
Shale transitive verb To take off the shell or coat of; to shell. « Life, in its upper grades, was bursting its shell, or was
shaling off its husk.»
I. Taylor. Found on
http://www.encyclo.co.uk/webster/S/80

A fine-grained clastic sedimentary rock formed by consolidation of clay and mud.
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http://www.evcforum.net/WebPages/Glossary_Geology.html

A mudstone that easily splits or fractures.
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http://www.fossilmall.com/Science/Glossary.htm

Fine grained sedimentary rock composed of lithified clay particles.
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http://www.physicalgeography.net/physgeoglos/s.html

A rock formed by consolidation of clay, mud, or silt, having a laminated structure and composed of minerals essentially unaltered since deposition.
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http://www.rocksandminerals.com/glossary.htm

Clay that has been subjected to high pressure until it has hardened rock-like,
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http://www.selectstone.com/architectural-resources/stone-glossary/

Clay found in deep seams that have been under great pressure, often found adjacent to coal. Shales are usually dark in colour and usually need grinding up before they can be used. Some fireclays occur as shales.
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https://ashbrook-ceramics.co.uk/pottery-glossary/

a sedimentary rock made up largely of clay particles arranged so the rock has fissility -- i.e., will split readily parallel to bedding laminae.
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https://www.encyclo.co.uk/local/20132

a thinly laminated sedimentary rock made of tiny clay-sized sedimentary particles.
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https://www.encyclo.co.uk/local/20800
noun a sedimentary rock formed by the deposition of successive layers of clay
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https://www.encyclo.co.uk/local/20974

Fine-grained and finely layered sedimentary rock composed of silt and clay. It is a weak rock, splitting easily along bedding planes to form thin, even slabs (by contrast, mudstone splits into irregular flakes). Oil shale contains kerogen, a solid bituminous material that yields petroleum when heated
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https://www.encyclo.co.uk/local/21221

A mudstone that splits or fractures readily.
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https://www.encyclo.co.uk/local/22327

A laminated mudstone formed under pressure.
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https://www.encyclo.co.uk/local/23001
No exact match found.