from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A steel-gray opaque mineral, with chemical formula FeSb2S4.
from the GNU version of the Collaborative International Dictionary of English
- n. A double sulphide of antimony and iron, of a dark steel-gray color.
from The Century Dictionary and Cyclopedia
- n. A sulphid of antimony and iron occurring in dark steel-gray prismatic crystals or fibrous masses.
Named for Pierre Berthier, a French chemist, + -ite. (Wiktionary)
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