Natrophilite
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Natrophilite is a mineral with the chemical formula NaMnPO4. It is colored yellow. Its crystals are orthorhombic to dipyramidal. It is transparent to translucent. It is not radioactive. Natrophilite is rated 4.5 to 5 on the Mohs Scale.
[edit] External link
- http://webmineral.com/data/Natrophilite.shtml - Webmineral Entry