DICT.TW Dictionary Taiwan
3.137.222.30
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 green·sand /-ˌsænd/
 綠砂

From: Webster's Revised Unabridged Dictionary (1913)

 Green·sand n. Geol. 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.
 ◄ ►

From: WordNet (r) 2.0

 greensand
      n : an olive-green sandstone containing glauconite