Definition of pyrrhotite
: a bronze-colored mineral of metallic luster that consists of ferrous sulfide and is attracted by a magnet
Explore Merriam-Webster
Recent Examples of pyrrhotite from the Web
-
According to a state report in early January, a mineral known as pyrrhotite was present in the concrete aggregate used for the foundations that are now crumbling, and was partly to blame, as was the amount of water used in installation.
-
A growing number of home foundations in central and northeastern Connecticut are failing because of the presence of pyrrhotite, a mineral that naturally reacts with oxygen and water.
-
Willington is one of 36 communities identified as potentially having homes with pyrrhotite problems.
-
Willington is one of 36 communities identified as potentially having homes with pyrrhotite problems.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pyrrhotite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of pyrrhotite
modification of German Pyrrhotin, from Greek pyrrhotēs redness, from pyrrhos red, from pyr fire — more at fire
Learn More about pyrrhotite
-
See words that rhyme with pyrrhotite Britannica.com: Encyclopedia article about pyrrhotite
Seen and Heard
What made you want to look up pyrrhotite? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!