Mineral Specimen Images (N)

Nordenskioldine: CaSnB2O6  
Magnetite: Fe++Fe+++2O4

Comments: Colorless to white bladed crystals of nordenskiöldine with black magnetite.
Location: Pöhla-Tellerhäuser Gallery, Pöhla, Schwarzenberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nordite-(Ce): (Ce,La,Ca)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17

Comments: Brownish rosette of nordite-(Ce) with visible single crystal morphology. Associated minerals are white etched natrosilite and minor black prismatic aegirine.
Location: Palitra pegmatite (Palette pegmatite), Kedykverpakhk Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Crystal Size 4 mm.
© Pavel M. Kartashov

Nordite-(La): (Na,Mn)3(Sr,Ca)(La,Ce)(Zn,Mg)Si6O17  
Magnesio-arfvedsonite: NaNa2(Mg4Fe++)Si8O22(OH)2

Comments: Large tabular crystal of brownish nordite-(La). Accessory minerals are white chalky natrolite and black prismatic magnesioarfvedsonite.
Location: Kirovskii apatite mine (Kirovsky Mine; Kirov Mine), Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: FOV is 12x10 mm.
© Pavel M. Kartashov

Nordstrandite: Al(OH)3

Comments: Large pale brownish crystals of nordstrandite.
Location: Bärenstein Quarry, Niederschlag, Oberwiesenthal, Erzgebirge, Saxony, Germany. Scale: Picture size 35 mm.
© Thomas Witzke / Abraxas-Verlag

Nordstromite: Pb3CuBi7(S10Se4)  
Weibullite: Pb6Bi8(S,Se)18

Comments: Fibrous, silvery crystals of nordstromite. Lacking a chemical analysis it is possible that the crystal is weibullite instead.
Location: Falu mine, Falun, Sweden. Scale: Crystal Size 1 mm.
© Tom Loomis / Dakota Matrix

Normandite: NaCa(Mn++,Fe++)(Ti,Nb,Zr)Si2O7(O,F)2

Comments: Divergent acicular normandite crystals in pegmatite.
Location: Mount Partomchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Norrishite: K(Mn+++2Li)Si4O10(O)2

Comments: Thin section photomicrograph showing norrishite (Nrs) associated with kornite (Krn), sugilite (Sgl), and Mn-rich pectolite (Pct) (AmMin 88:190).
Location: Silicate-rich sample from the Wessels mine, Kalahari manganese field, South Africa. Scale: Picture Size 2.4 mm.
© American Mineralogist

Norsethite: BaMg(CO3)2

Comments: B&W RL image of interlocking norsethite (light-grey, stained) and calcite (dark-grey, etched). Etched with sodium rhodizonate solution. (AmMin, v52:1770).
Location: Discoveredz inc-lead-coppedr eposita t Rosh Pinah, situated about 100 miles south-east of Aus in South West Africa. Scale: Magnification 85 X.
© American Mineralogist

Northupite: Na3Mg(CO3)2Cl

Comments: Single octahedron of Northupite.
Location: Searles Lake, San Bernardino County, California, USA. Scale: Grain size 8 mm.
© Dave Barthelmy

Nosean: Na8Al6Si6O24(SO4)

Comments: Stubby crystal of nosean on matrix.
Location: Mendig, Laacher See, Rhineland-Pal., Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Novacekite: Mg(UO2)2(AsO4)2·12(H2O)  
Metanovacekite: Mg(UO2)2(AsO4)2·4-8(H2O)

Comments: Yellow, translucent platy novacekite/metanovacekite crystal aggregate.
Location: Rabejac Mine, Olmet, Herault, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Novacekite: Mg(UO2)2(AsO4)2·12(H2O)

Comments: Scanner image of massive, yellow novacekite covering matrix.
Location: Serra das Éguas,Bahia, Northeast Region, Brazil. Scale: Specimen size 4.1 cm.
© Paul M. Schumacher

Novakite: (Cu,Ag)21As10  
Berzelianite: Cu2Se

Comments: Gray metallic dendritic novakite in white calcite with tarnished black berzelianite.
Location: Cerny Dul, Bohemia, Vychodocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Novgorodovaite: Ca2(C2O4)Cl2·2(H2O)

Comments: A small fragment of the oxalate mineral novgorodovaite.
Location: Chelkar salt dome, Aksai Valley, Aqtöbe Oblysy (Aktubinsk [Aktyubinsk; Aktubinskaya] Oblast'), Kazakhstan. Scale: Grain size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

Nsutite: (Mn++++1-x)(Mn++x)(O2-2x)(OH2x) where x = 0.06-0.07

Comments: Dark gray to black sub-metallic to dull massive nsutite.
Location: Nsuta, Western Province, Ghana. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nukundamite: (Cu,Fe)4S4  
Covellite: CuS

Comments: Metallic brownish rim of nukundamite with dark purplish-blue covellite on fine-grained pyrite.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Nullaginite: Ni2(CO3)(OH)2

Comments: BSE image of a nullaginite nodule in a polished section. (CanMin, v19:315).
Location: Otwav deposit, Nullagine district, Western Australia.. Scale: See Image.
© Canadian Mineralogist

Nullaginite: Ni2(CO3)(OH)2

Comments: Green encrustations of nullaginite on matrix.
Location: Widgiemooltha, Western Australia, Australia. Scale: Sample size: 2 x 2 x 1 cm.
© Tom Loomis / Dakota Matrix

Numanoite: Ca4CuB4O6(OH)6(CO3)2  
Borcarite: Ca4MgB4O6(OH)6(CO3)2

Comments: Zoned borcarite (Bc) crystal with a core of green numanoite (Nm). CanMin 45:307.
Location: Fuka mine, 40 km west-northwest of Okayama City, western Japan. Scale: See Image.
© Canadian Mineralogist

Nyerereite: Na2Ca(CO3)2  
Gregoryite: (Na2,K2,Ca)CO3

Comments: Sodium (nyereteite) and potassium (gregoryite) carbonates, not stable in normal atmosphere, collected molten from the volcano and maintained in inert argon atmosphere.
Location: Ol Doinyo Lengai Vulkan, Maasai Steppe, East Africa Rift Valley, Tanzania. See Link. Scale: Rock size 2 cm.
© Richard Dale / Dale Minerals