Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A brownish-bronze iron sulfide mineral, FeS, characterized by weak magnetic properties and used as an iron ore and in the manufacture of sulfuric acid.
from The Century Dictionary.
- noun Same as
pyrrhotine .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A weakly
magnetic ferrous sulfide mineral ,Fe S .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a brownish iron sulfide mineral (FeS) having weak magnetic properties
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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• A few minerals are magnetic such as pyrrhotite and magnetite.
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Like PAHs, these minerals -- mainly iron compounds called magnetite and pyrrhotite -- can come from inorganic sources.
Come In, Mars 2008
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These mineral crystals were identified as magnetite, pyrrhotite, and greigite.
The Case for Mars Robert Zubrin 1996
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In essence, the researchers hold that the combination of magnetite, pyrrhotite, and carbonate could not have formed nonbiologically.
The Case for Mars Robert Zubrin 1996
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In essence, the researchers hold that the combination of magnetite, pyrrhotite, and carbonate could not have formed nonbiologically.
The Case for Mars Robert Zubrin 1996
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However, inorganic precipitation of magnetite and pyrrhotite require just the opposite conditions: high pH rather than low acidic pH conditions.
The Case for Mars Robert Zubrin 1996
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However, inorganic precipitation of magnetite and pyrrhotite require just the opposite conditions: high pH rather than low acidic pH conditions.
The Case for Mars Robert Zubrin 1996
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These mineral crystals were identified as magnetite, pyrrhotite, and greigite.
The Case for Mars Robert Zubrin 1996
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Marcasite and pyrrhotite, other iron sulphide minerals, are frequently found with pyrite and are used for the same purposes.
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The target for all drilling on the Eastern Extension property is smoky quartz veins mineralized with sulphides pyrite, pyrrhotite, chalcopyrite, sphalerite ± visible gold.
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