Mineral Specimen Images (N)

Nagashimalite: Ba4(V+++,Ti)4Si8B2O27Cl(O,OH)2

Comments: Dark olive green translucent to opaque bladed nagashimalite crystals on in pale pink rhodonite.
Location: Mogurazawa mine, Kiryuu City, Gunma Prefecture, Kanto Region, Honshu Island, Japan. Scale: Picture Size 3 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Nagashimalite: Ba4(V+++,Ti)4Si8B2O27Cl(O,OH)2

Comments: Dark olive green translucent to opaque bladed nagashimalite crystals on in pale pink rhodonite.
Location: Mogurazawa mine, Kiryuu City, Gunma Prefecture, Kanto Region, Honshu Island, Japan. Scale: Picture Size 3 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Nagelschmidtite: Ca7(SiO4)3(PO4)2

Comments: Upper - Transmitted light thin sections showing honey-brown nagelschmidtite. Lower - reflected light polished section showing nagelschmidtite (Nag), rankinite (Ran), Ti-rich androdite (Andr).
Location: Andradite-rich pegmatoid rock, Haturim Basin, Negev Desert, Israel. Scale: See Images.
© Diederik Visser

Nagelschmidtite: Ca7(SiO4)3(PO4)2

Comments: Upper - Transmitted light thin sections showing honey-brown nagelschmidtite. Lower - reflected light polished section showing nagelschmidtite (Nag), rankinite (Ran), Ti-rich androdite (Andr).
Location: Andradite-rich pegmatoid rock, Haturim Basin, Negev Desert, Israel. Scale: See Images.
© Diederik Visser

Nagyagite: AuPb(Sb,Bi)Te2-3S6

Comments: Nagyagite partially covered with calcite.
Location: Sacaramb (Nagyag), Romania. Scale: Crystal size 1 cm.
© John Veevaert

Nagyagite: AuPb(Sb,Bi)Te2-3S6

Comments: Nagyagite partially covered with calcite.
Location: Sacaramb (Nagyag), Romania. Scale: Crystal size 1 cm.
© John Veevaert

Nahcolite: NaHCO3

Comments: Massive, translucent nahcolite.
Location: Anvil Point, Rifle, Garfield County, Colorado, USA. Scale: 2.1 x 1.4 cm.
© John Veevaert

Nahcolite: NaHCO3  
Trona: Na3(CO3)(HCO3)·2(H2O)

Comments: Massive, coarse-grained Trona from a drill core of the upper mixed-layer Saltbed. White areas are nahcolite alteration.
Location: Searles Lake, San Bernardino County, California, USA. Scale: 12 x 15 cm.
© Dave Barthelmy

Nahcolite: NaHCO3

Comments: Massive, translucent nahcolite.
Location: Anvil Point, Rifle, Garfield County, Colorado, USA. Scale: 2.1 x 1.4 cm.
© John Veevaert

Nahcolite: NaHCO3  
Trona: Na3(CO3)(HCO3)·2(H2O)

Comments: Massive, coarse-grained Trona from a drill core of the upper mixed-layer Saltbed. White areas are nahcolite alteration.
Location: Searles Lake, San Bernardino County, California, USA. Scale: 12 x 15 cm.
© Dave Barthelmy

Nahpoite: Na2HPO4

Comments: Nearly opaque white powdery nahpoite.
Location: Big Fish River, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nahpoite: Na2HPO4

Comments: Nearly opaque white powdery nahpoite.
Location: Big Fish River, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nakauriite: (Mn,Ni,Cu)8(SO4)4(CO3)(OH)6·48(H2O)

Comments: Blue crystals of nakauriite on green serpentinite.
Location: Lobming, Styria, Austria. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nakauriite: (Mn,Ni,Cu)8(SO4)4(CO3)(OH)6·48(H2O)

Comments: Blue crystals of nakauriite on green serpentinite.
Location: Lobming, Styria, Austria. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nalivkinite: Li2NaFe++7Ti2Si8O24(OH)4F

Comments: Aggregate of metallic, bronze nalivkinite flake-like plates in alkaline granitic pegmatite. Associated minerals are quartz, feldspars and aegirine.
Location: . Scale: Picture Size 3x2.5 cm.
© Pavel M. Kartashov

Nalivkinite: Li2NaFe++7Ti2Si8O24(OH)4F

Comments: Aggregate of metallic, bronze nalivkinite flake-like plates in alkaline granitic pegmatite. Associated minerals are quartz, feldspars and aegirine.
Location: . Scale: Picture Size 3x2.5 cm.
© Pavel M. Kartashov

Namansilite: NaMn+++(Si2O6)

Comments: Dark red namansilite veinlets in rock (slabbed specimen).
Location: Woods mine, near Tamworth, New South Wales, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Namansilite: NaMn+++(Si2O6)

Comments: Dark red namansilite veinlets in rock (slabbed specimen).
Location: Woods mine, near Tamworth, New South Wales, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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

Comments: Brown crystalline nambulite with pinkish rhodonite.
Location: Gozaisho Mine, Iwaki, Fukushima, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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

Comments: Brown crystalline nambulite with pinkish rhodonite.
Location: Gozaisho Mine, Iwaki, Fukushima, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species