greensand

1. n. 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. Source: opted

2. n. an olive-green sandstone containing glauconite Source: wordnet

3. 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. Note: Greensand is often called marl, because it is a useful fertilizer. The greensand beds of the American Cretaceous belong mostly to the Upper Cretaceous. Source: webster

4. A variety of sandstone, usually imperfectly consolidated,consisting largely of glauconite, a silicate of iron and potash of agreen color, mixed with sand and a trace of phosphate of lime. Source: adambom

5. n. an olive-green sandstone containing glauconite Source: ecdict

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