fire blende
/ˈfʌɪəˌblɛnd/(also fire-blende, fireblende) Mineralogy. Now rare
noun
Pyrostilpnite, a sulphide of silver and antimony, occurring as orange-red tabular or needle-like crystals.
Origin
Mid 19th century; earliest use found in Edinburgh New Philosophical Journal. From fire + blende, after German Feuerblende.