from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoclinic-prismatic mineral containing hydrogen, iron, oxygen, and phosphorus.
from The Century Dictionary and Cyclopedia
- n. A hydrous ferric phosphate, 2FePO4 + 3½H2O, occurring in red orthorhombic crystals: found in cavities in iron ore in the Siegen district, Germany.
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