boulangerite
Noun
Meaning
A mineral of a bluish gray color and metallic luster, usually in plumose masses, also compact. It is a sulphide of antimony and lead.
Source: Webster's dictionaryNoun
A mineral of a bluish gray color and metallic luster, usually in plumose masses, also compact. It is a sulphide of antimony and lead.
Source: Webster's dictionary