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1. (n.) greensand
a sandstone containing much glauconite, which gives it a greenish hue.
Etymology: (1790–1800)
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| Definition of 'greensand' |
Princeton's WordNet |
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1. (noun) greensand
an olive-green sandstone containing glauconite
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| Definition of 'greensand' |
Webster Dictionary |
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1. (noun) greensand
a variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green color, mixed with sand and a trace of phosphate of lime
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Definitions of greensand 
