pyrrhotine
Definition
Noun A brownish iron sulfide mineral with the chemical formula FeS, characterized by weak magnetic properties. It is a naturally occurring, non-stoichiometric compound of iron and sulfur, often found in igneous and metamorphic rocks.
Usage
Pyrrhotine is used as a specific term in geology and mineralogy to identify this particular mineral species. * The geologist identified the magnetic mineral in the sample as pyrrhotine. * Pyrrhotine is an important ore mineral for nickel when it occurs in pentlandite solid solutions.
Advanced Usage
- In Petrology: Pyrrhotine's presence can be an indicator of the redox conditions during rock formation.
- The assemblage of pyrrhotine and magnetite suggests the rock formed under moderately reducing conditions.
- In Economic Geology: It is a common accessory mineral in many ore deposits and can be a source of sulfur.
Variants and Related Words
- Pyrrhotite: This is the more commonly used synonym for pyrrhotine. The terms are interchangeable, though "pyrrhotite" is often preferred in modern scientific literature.
- Magnetic Pyrite: An older, non-scientific name for pyrrhotine, referencing its weak magnetism and sulfide composition.
Synonyms
- Pyrrhotite
- Magnetic pyrite (archaic)
Different Meanings
The word "pyrrhotine" refers exclusively to the mineral. It does not have other common meanings in general English.
Noun
-
a brownish iron sulfide mineral (FeS) having weak magnetic properties
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