brochantite

noun

bro·​chant·​ite

brōˈshänˌtīt

plural -s

: a mineral Cu₄SO₄(OH)₆ consisting of a basic copper sulfate occurring in emerald-green orthorhombic crystals or massive (hardness 3.5–4, specific gravity 3.91)

Word History

Etymology

A. J. F. M. Brochant de Villiers †1840 French geologist + English -ite

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!