from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoclinic-prismatic mineral containing arsenic, bismuth, calcium, cobalt, hydrogen, iron, nickel, and oxygen.
from The Century Dictionary and Cyclopedia
- n. A mineral occurring in minute honey-yellow octahedrons at Schneeberg in Tyrol: it contains lime and antimony, but the exact composition is unknown.
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