from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An orthorhombic-dipyramidal yellow mineral containing manganese, oxygen, phosphorus, and sodium.
from The Century Dictionary and Cyclopedia
- n. A rare sodium-manganese phosphate (NaMnPO4) occurringin cleavable masses of a deep wine-yellow color: found at Branchville, Connecticut.
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