from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A sulfide of silver and antimony.
from the GNU version of the Collaborative International Dictionary of English
- n. A mineral of an iron-black color, and very sectile, consisting principally of sulphur, antimony, and silver.
from The Century Dictionary and Cyclopedia
- n. In mineralogy, a sulphid of antimony and silver, occurring in monoclinic crystals of an iron-black color with dark cherry-red streak.
Ancient Greek meyon, "smaller", and argyros, "silver", as its silver content is lower than most silver sulfides. (Wiktionary)
Mineralogical analysis shows that silver is contained, partly or fully, in the silver bearing minerals pyrargyrite, naumannite a directly cyanide soluble silver mineral and selenian miargyrite.