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  Boulder

Sigma KEE - Boulder
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Boulder
Boulders are Rock fragments larger than 256 Millimeters in approximateDiameter on the Wentworth Scale.
Relationships      
Parents Rock Rock is any naturally formed aggregate of one or more minerals, consolidated or not, with some degree of mineralogic and chemical constancy, in popular use the term is usually restricted to those aggregates that are hard, compact, and coherent.


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