Mineral Specimen Images (N)

Natrolite: Na2[Al2Si3O10]·2(H2O)  
Serandite: Na(Mn++,Ca)2Si3O8(OH)  
Analcime: NaAlSi2O6·(H2O)

Comments: Orange-red, blocky serandite with white, blocky natrolite and white, equant grains of analcime.
Location: Mt. St. Hilaire, Canada. Scale: 4 x 3 cm.
© Fabre Minerals

Natromontebrasite: (Na,Li)Al(PO4)(OH,F)

Comments: Pale tan to orange natromontebrasite cleavages in quartz.
Location: Mica Load, Canon City, Fremont County, Colorado, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natron: Na2CO3·10(H2O)

Comments: Opaque white powdery massive natron.
Location: Atlin, British Columbia, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natronambulite: (Na,Li)Mn++4[Si5O14(OH)]

Comments: Thin section image of natronamulite (Nn) in assocation with aegirine (Ac), arfvedsonite (Am) and quartz (Q). (JMPS, v12:332).
Location: Tanohata mine, Iwate Prefecture, Japan. Scale: Picture Size 1.9 x 1.5 mm.
© Mineralogical Journal

Natroniobite: NaNbO3

Comments: Olive-green colored translucent crystalline natroniobite fragments.
Location: Lesnaya Varaka Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natrophilite: NaMnPO4

Comments: Natrophilite with lithiophilite.
Location: Abija N. Fillow Quarry (Branchville Quarry), Branchville, Redding, Fairfield Co., Connecticut, USA. Scale: Specimen Size 3.7 x 2.2 x 1.9 cm.
© Rob Lavinsky

Natrophosphate: Na7(PO4)2F·19(H2O)

Comments: Specimen of natrophosphate sealed into a plastic box.
Location: Koashva Mt., Khibiny Massif, Kola Peninsula, Russia. Scale: Specimen Size 2x1.5x1 cm.
© Sergey Vasiliev / Systematic Mineralogy

Natrosilite: Na2Si2O5

Comments: Colorless, clear to translucent crystalline natrosilite fragment, found in pale pink ussingite.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natrotantite: Na2Ta4O11

Comments: BSE image of ferrotapiolite (1), natrotantite (2) and simsonite (3).
Location: Alto Cajazeiras, south of Junro do Serido, Paraibo, Brazil. Scale: See Image.
© Diederik Visser

Natroxalate: Na2C2O4

Comments: Colorless transparent crystalline natroxalate fragment.
Location: Mount Kukisvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natrozippeite: Na4(UO2)6(SO4)3(OH)10·4(H2O)

Comments: Yellow encrustations of sodium-zippeite on matrix.
Location: Kovagoszolos, Mecsek Mts., Pecs Co., Hungary. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Naujakasite: Na6(Fe++,Mn)Al4Si8O26  
Villiaumite: NaF

Comments: Greenish-gray crystals of naujakasite with red villiaumite.
Location: Narsaq river, Kvanefjeld Mt., Ilímaussaq massif, Greenland. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Naumannite: Ag2Se

Comments: Black crystal of Naumannite in a quartz-lined vug.
Location: DeLamar mine, DeLamar, Owyhee County, Idaho. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Navajoite: V2O5·3(H2O)

Comments: Purple-brown adamantine navajoite coatings on conglomerate.
Location: Monument #2 Mine, Monument Valley, Apache County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nchwaningite: Mn++2SiO3(OH)2·(H2O)

Comments: SEM image of acicular, platy nchwaningite crystals. (AmMin, v80:377).
Location: N'chwaning mine, Kalahari manganesefi eld, South Africa. Scale: See Image.
© American Mineralogist

Nealite: Pb4Fe++(As+++++O4)2Cl4

Comments: Orange-yellow prismatic crystals of Nealite on matrix.
Location: Lavrion District slag localities, Attikí (Attica; Attika) Prefecture, Greece. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Nealite-(H2O): Pb4Fe++(As+++O3)2Cl4·2(H2O)

Comments: Orange crystals of nealite-(H2O) on matrix.
Location: Laurium, Greece. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Nechelyustovite: (Ba,Na)2{(Na,Ti,Mn)4[(Ti,Nb)2O2Si4O14](OH,O,F)2}·4.5H2O

Comments: Nechelyustovite aggregate.
Location: Kirovsky Mine, Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Russia. Scale: Grid Size 1 mm.
© Sergey Vasiliev / Systematic Mineralogy

Neighborite: NaMgF3

Comments: Dark red-brown neighborite crystals in matrix.
Location: Mont St. Hilaire, Quebec, Canada. Scale: Crystal Size 1-2 mm.
© Diederik Visser

Nekoite: Ca3Si6O15·7(H2O)

Comments: Sprays of translucent acicular nekoite crystals.
Location: Iron Cap Mine, Graham County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species