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Neltnerite: CaMn+++6SiO12
Comments: Black neltnerite microcrystals lining vugs. Location: Manganese Creek, Keeweenaw County, Michigan, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Nenadkevichite: (Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O)
Comments: Pinkish crystal of nenadkevichite on matrix. Location: Monte St. Hilaire, Quebec, Canada. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Neotocite: (Mn,Fe++)SiO3·(H2O) (?)
Comments: Dark brown resinous massive neotocite. Location: Buzzarla Mine, San Luis Obispo County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Nepheline: (Na,K)AlSiO4
Comments: Stubby, hexagonal prism of Nepheline in matrix. Location: Point of Rocks Mesa, Colfax County, New Mexico. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Nepouite: Ni3Si2O5(OH)4
Comments: Massive, green népouite. Location: Callenberg North (no. 2) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Specimen size 4 cm. © Thomas Witzke / Abraxas-Verlag
Nepskoeite: Mg4Cl(OH)7·6(H2O)
Comments: Cream-colored nodules of nepskoeite recovered from potash ore preserved in glass tube 1.5 cm long. Location: Nepskoe Deposit, Irkutsk District, Siberia, Russia. Scale: Nodule Size 0.1 mm. © Diederik Visser
Neptunite: KNa2Li(Fe++,Mn)2Ti2Si8O24 Natrolite: Na2[Al2Si3O10]·2(H2O)
Comments: Jet-black square prisms of neptunite etched out of the enclosing white natrolite with minor benitoite. Location: Benitoite Gem Mine. San Benito Co. California, USA. Scale: 6.5 x 6 cm. © Fabre Minerals
Neskevaaraite-Fe: NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O)
Comments: Aggregate of brown neskevaaraite-Fe crystals. Location: Neskevaara Hill, Vuoriyarvi Massif, N.Karelia, Russia. Scale: Specimen Length 5 mm. © Sergey Vasiliev / Systematic Mineralogy
Nesquehonite: Mg(HCO3)(OH)·2(H2O)
Comments: Scanning electron micrographs of nesquehonite clusters showing the typical elongated habit. (AmMin, 88:1882). Location: Crystals associated with the remains of a saguaro, Carnegiea gigantea from south and west central Arizona. Scale: Scale Bar 50 µ-m (lower left). © American Mineralogist
Neustadtelite: Bi2Fe+++(Fe+++,Co)(O,OH)2(OH)2(AsO4)2
Comments: Scanning electron microscope micrograph of neustadtelite. (AmMin 87:728). Location: Mine dumps of the Güldener Falk mine near Schneeberg-Neustädtel, Saxony, Germany. Scale: Scale Bar 15 µm. © American Mineralogist
Comments: Small brown crystals of neustadtelite in matrix. Location: Sauschwart mine, Schneeberg, Erzgebirge, Saxony, Germany. Scale: Picture Size 1.5 mm. © Thomas Witzke
Nevadaite: (Cu++,[ ],Al,V+++)6[Al8(PO4)8F8] (H2O)23
Comments: Robin's egg blue radiating acicular sprays of nevadaite to about 0.3 mm. Location: Gold Quarry mine, Eureka Co., Nevada, USA. Scale: Picture size 2 cm. © Tom Loomis / Dakota Matrix
Nevskite: Bi(Se,S) Ingodite: Bi(S,Te) Telluronevskite: Bi3TeSe2
Comments: Intergrown metallic grains of ingodite, telluronevskite, and nevskiite. Location: Poruba pod Vihorlatom, Vihorlat Mountains, Kosice Slovak Republic. Scale: Specimen Size 2.8 × 1.7 × 1 cm. © Fabre Minerals
Newberyite: Mg(PO3OH)·3(H2O) Dittmarite: (NH4)Mg(PO4)·(H2O)
Comments: Translucent crystalline dittmaritewith more opaque newberyite. Location: Skipton Caves, Victoria, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Newberyite: Mg(PO3OH)·3(H2O) Hannayite: (NH4)2Mg3H4(PO4)4·8(H2O)
Comments: Translucent white prismatic crystals of hannayite on brown newberyite. Location: Skipton Caves, Victoria, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Newberyite: Mg(PO3OH)·3(H2O) Monetite: CaHPO4
Comments: Tan coatings of monetite on white newberyite pseudomorphous after struvite crystal. Location: Mono Lake, Mono County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Newberyite: Mg(PO3OH)·3(H2O)
Comments: Crudely formed crystal newberyite aggregate. Location: Skipton Caves, near Balarat, Victoria, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Neyite: AgCu3Pb12.5Bi13S34
Comments: Black foliated metallic neyite on quartz. Location: near Hope, British Columbia, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Nezilovite: PbZn2(Mn++++,Ti++++)2Fe+++8O19
Comments: Small black grains of nezilovite in matrix. Location: Nezilovo, FYR Macedonia. Scale: Picture size 1 mm. © Thomas Witzke / Abraxas-Verlag
Nickel: Ni
Comments: Very small cubic crystal of native Nickel, isolated from an ore concentrate. Location: Nouméa, New Caledonia. Scale: Crystal size 0.1 mm. © Thomas Witzke / Abraxas-Verlag