Definition

Noun: 1. A brownish iron sulfide mineral: A naturally occurring inorganic solid with a brownish color, composed primarily of iron and sulfur (chemical formula FeS). It is distinguished by possessing weak magnetic properties.

Usage

• This term is used specifically in the fields of mineralogy and geology to identify and describe this particular mineral.
• It is a technical, scientific term and is not used in everyday conversation.

Examples

• Scientific Context:
  • The geologist identified the sample as magnetic pyrites due to its brownish hue and its slight attraction to a magnet.
  • The ore deposit contained significant quantities of magnetic pyrites alongside other sulfide minerals.

Advanced Usage

• The mineral's weak magnetism is a key diagnostic property used to distinguish it from the more common mineral pyrite (fool's gold), which is not magnetic.
• In scientific literature, it may be referred to by its more precise mineral name, pyrrhotite.

Variants and Related Words

• Pyrrhotite (n): The more formal and specific mineralogical name for magnetic pyrites.
• Pyrite (n): A common iron sulfide mineral (FeS₂) with a brassy yellow color, often called "fool's gold." It is not magnetic.
• Troilite (n): A non-magnetic variety of iron sulfide (FeS) with a specific, ordered crystal structure.

Synonyms

• Pyrrhotite

Antonyms

• Pyrite (Fool's gold): While chemically related (both are iron sulfides), pyrite is a distinct mineral that lacks magnetic properties.

Noun

1. a brownish iron sulfide mineral (FeS) having weak magnetic properties