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Diameter, mm (1mm - 0,039inch)

Nepheline mineral - You can buy these samples

Nepheline is a rock-forming mineral rarely found in crystals.

You can see nepheline stone for sale and buy it in the Minerals of Russia online store.

Physical properties of Nepheline

General
Category Tectosilicate, feldspathoid
Formula
(repeating unit)
(Na,K)AlSiO4
IMA symbol Nph
Strunz classification 9.FA.05
Crystal system Hexagonal
Crystal class Pyramidal (6)
H-M Symbol: (6)
Space group P63
Identification
Formula mass 146.08 g/mol
Color White, gray, brown, brownish gray, or reddish white
Crystal habit Massive granular to prismatic
Twinning On [1010], [3365], and [1122]
Cleavage [1010] Poor
Fracture Subconchoidal
Mohs scale hardness 6
Luster Vitreous to greasy
Streak White
Specific gravity 2.55–2.65 (average: 2.59)
Optical properties Uniaxial (-)
Refractive index nω = 1.529–1.546; nε = 1.526–1.542
Birefringence δ = 0.003–0.004
Other characteristics non-radioactive, non-magnetic, non-fluorescent

Code: 3781
Mount Kukisvumchorr, Khibiny, Kola Peninsula, RF
56*53*26mm

0.00 $ $49.09

Code: 3497/19А
Marchenko Peak, Khibiny, Kola Peninsula, RF
180*115*75mm

0.00 $ $240.00

Code: 1114
Kirovsky mine, Murmansk region, Kola Peninsula, RF
49,5mm

0.00 $ $98.18

Code: 1107
Kirovsky mine, Khibiny, Kola Peninsula, RF
57mm

0.00 $ $149.09

Code: 983
Kirovsky mine, Khibiny, Kola Peninsula, RF
49mm

0.00 $ $130.91

Code: 984
Kirovsky mine, Khibiny, Kola Peninsula, RF
35mm

0.00 $ $70.91

Recommended
RARE Nepheline crystals archived
Code: 3370
Odikhincha deposit, Krasnoyarsk Territory, RF
51*47*35mm

0.00 $ $74.55

Code: 2544
Marchenko Peak, Khibiny, Kola Peninsula, RF
66*35*9mm

0.00 $ $19.00

Code: 2473
Mount Kukisvumchorr, Khibiny, Kola Peninsula, RF
64*49*28mm

0.00 $ $49.09

Code: 2207
Marchenko Peak, Khibiny, Kola Peninsula, RF
66*44*7mm

0.00 $ $19.00

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