Natrophilite

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Natrophilite
Natrophilite-Lithiophilite-200020.jpg
Natrophilite, as thin coatings and fracture fillings, from Branchville, Redding, Fairfield County, Connecticut, US
General
Category Phosphate mineral
Formula
(repeating unit)
NaMnPO4
Strunz classification 8.AB.10
Crystal system Orthorhombic
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space group Pnam
Identification
Color Deep yellow to light yellow
Cleavage Distinct/ good
Fracture Irregular/ uneven
Tenacity Brittle
Mohs scale hardness 4½ - 5
Luster Sub-vitreous, greasy
Streak White
Diaphaneity Transparent, translucent
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.

References[edit]