from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A whitish to yellowish hydrous magnesium sulfate mineral, MgSO4·H2O, found in salt residues.
from The Century Dictionary.
- noun A hydrated sulphate of magnesium, occurring in considerable beds with rock-salt at Stass-furt, Prussia, and elsewhere.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) Hydrous sulphate of magnesia found at the salt mines of Stassfurt, Prussian Saxony.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A
saline evaporite, consisting of hydrated magnesium sulphate
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a white mineral consisting of hydrous magnesium sulfate often found in salt mines
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Above this last layer there is a layer of about 90 feet, containing kieserite (magnesium sulphate) mixed with potassium and magnesium chlorides; and above this again is a layer (90 feet) of carnallite, which furnishes the chief source of the potash salts used for manurial purposes.
"Since then we have been applying 200-300kg/ha of a fertiliser blend containing kieserite (magnesium sulphate) and ammonium sulphate, along with NPK and sodium, 6-7 times a year."
The usual form of compound fertilizer used is a mixture of urea, double superphosphate, muriate of potash and kieserite to supply the magnesium.
Using kieserite (magnesium sulphate) would be too expensive, so Mr Land's recommended an alternative.
Which of these is good for nickel: kernite, kutnahorite, kullerudite, kieserite?