pyrargyrite

noun

pyr·​ar·​gy·​rite

pīˈrärjəˌrīt,

pə̇ˈr-

plural -s

: a silver antimony sulfide Ag₃SbS₃ that is isomorphous with proustite, occurs in rhombohedral crystals or massive, and has a dark-red or black color with a metallic adamantine luster

called also dark red silver ore, ruby silver

Word History

Etymology

German pyrargyrit, from pyr- + argyr- + -it -ite

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now