Recent Examples of chalcocite from the Web
Materials like the copper ore mineral chalcocite and fool's gold, pyrite, are sulfidic anions.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chalcocite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Seen and Heard
What made you want to look up chalcocite? Please tell us where you read or heard it (including the quote, if possible).