noun
- plural of pyrrhotite; iron sulfide minerals with the chemical formula Fe(1-x)S
Usage: mineralogy
Examples
- The geologist identified several pyrrhotites in the rock sample.
- Pyrrhotites are commonly found in igneous and metamorphic rocks.
- The mining company extracted pyrrhotites along with other sulfide minerals.
- These pyrrhotites exhibit magnetic properties due to their iron content.
- The laboratory analyzed the pyrrhotites to determine their exact composition.
- Pyrrhotites often occur alongside pyrite in ore deposits.