Definition of "greensand" [green•sand]

• A sand or sediment having a dark greenish color caused by the presence of glauconite. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Another soil enhancer we use at Arrows is called greensand, which is a mineral additive that provides potassium tomatoes and peppers are heavy potassium feeders and improves drainage."
• "Westbury, there is good iron-ore in the greensand, which is being smelted now, as it used to be in the Weald of Surrey and Kent ages since."
• "These developed in old deposits of greenish clay containing greensand."