from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A pale green or apple-green mineral, (Ni, Mg)3Si2O5(OH)4, used as a gemstone and as an important nickel ore.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A green nickel ore found in fissures of weathered ultramafic rocks.
from the GNU version of the Collaborative International Dictionary of English
- n. An amorphous mineral of apple-green color; a hydrous silicate of nickel and magnesia. It is an important ore of nickel.
from The Century Dictionary and Cyclopedia
- n. A hydrous silicate of nickel and magnesium, occurring massive and of an apple-green color in New Caledonia. It is an important ore of nickel. A similar mineral occurs in Oregon.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a green mineral consisting of hydrated nickel magnesium silicate; a source of nickel
The second, the garnierite or "lateritic" type of nickel ores, is somewhat more common and is represented by the deposits of New
Noumeite and garnierite are hydrated silicates of nickel and magnesia.
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(particularly pentlandite, but also millerite, niccolite, and others), which are found at Sudbury intergrown with the iron and copper sulphides, pyrrhotite and chalcopyrite; and the hydrated nickel-magnesium silicates (garnierite and genthite), which are products of weathering.
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