Natrophilite

Natrophilite
Natrophilite, as thin coatings and fracture fillings, from Branchville, Redding, Fairfield County, Connecticut, US
General
Category	Phosphate mineral
Formula (repeating unit)	NaMnPO₄
Strunz classification	08.AB.10
Crystal system	Orthorhombic
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 Na Mn P O₄. 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

Webmineral entry

Simple	Hausmannite Manganite Manganosite Nsutite Pyrolusite

Mixed	Birnessite Bixbyite Ferrocolumbite Ferrotantalite Galaxite Jacobsite Manganotantalite Psilomelane Romanèchite Tantalite Todorokite Umber

Phosphates

Silicates

Sulfides

Other

This article is issued from Wikipedia - version of the Saturday, April 09, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.