Definition of helvite
: a silicate mineral (Mn,Fe,Zn)8Be6O24S2 consisting of sulfide of manganese and beryllium and usually containing also iron and zinc that is isomorphous with danalite and genthelvite
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!
Origin and Etymology of helvite
helvite alteration (influenced by -ite) of helvin; helvin, helvine from German helvin, from Latin helvus light-bay-colored + German -in
Seen and Heard
What made you want to look up helvite? Please tell us where you read or heard it (including the quote, if possible).