a red mineral consisting of silver arsenic sulphide in hexagonal crystalline form. Formula: Ag3AsS3
Word origin
C19: from French, named after Joseph Louis Proust
pyrargyrite in British English
(paɪˈrɑːdʒɪˌraɪt)
noun
a dark red to black mineral consisting of silver antimony sulphide in hexagonal crystalline form: occurs in silver veins and is an important ore of silver. Formula: Ag3SbS3
Word origin
C19: from German Pyrargyrit, from pyro- + Greek arguros silver
ruby silver in American English
noun Mineralogy
1.
proustite
2.
pyrargyrite
Word origin
[1875–80]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: Diaspora, graph, neoclassic, overdraft, pressure point