Natrophilite, as thin coatings and fracture fillings, from Branchville, Redding, Fairfield County, Connecticut, USA
|Color||Deep yellow to light yellow|
|Mohs scale hardness||4½ - 5|
|Specific gravity||3.41 g/cm3|
Natrophilite is a mineral with the chemical formula NaMnPO4. In a pure form it has a yellow coloration. 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.
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