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Natroniobite

Additional Functions

Collectors Summary

Color gelbbraun, schwarz
Streak color grau
Hardness (Mohs) 5.50 - 6.00
Crystal System monoklin,

Chemism

Chem­ical formula

NaNbO3

Chem­ical com­po­si­tion

Natrium, Niob, Sauerstoff

Unit weight: 163.8944422 u; Number of atoms in the formula: 5

Info

Empirical formula:

NaNbO3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

29.29

3

60.00

15.9994300

47.9982900

Sodium

Na

14.03

1

20.00

22.9897702

22.9897702

Niobium

Nb

56.69

1

20.00

92.9063820

92.9063820

Anal­y­sis wt%

Nb2O5 : 74.06, Ta2O5 : 0.83, TiO2 : 5.56, Fe2O3 : 1.35, CaO : 2.80, Ln2O3 : 3.25, ThO2 : 0.56, Na2O : 9.08, H2O : 0.67, SiO2 : 0.97 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 82)

Strunz 9th edi­tion incl. updates

4.CC.30

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
C: Mit großen und mittelgroßen Kationen
30:Perowskit-Gruppe

Lapis Clas­sifica­tion

IV/C.10-070

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
10: Perowskit-Reihe

Clas­sifica­tion by Hölzel

4.CF.165

4: OXIDES
C: R2O3 Sesquioxides
F: Perovskite-Group

IMA sta­tus

Status fragwürdig

Optical Properties

Color

gelbbraun, schwarz

Streak color

grau

max. Birefrin­gence

0.110

Birefringence chart\! Natroniobite title=Birefringence chart Natroniobite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

2.115

RI value β

2.20

RI value γ / ε

2.225

Ri mean

2.180

2V angle

Biaxial (+) 20°!

Crystallography

Crystal Sys­tem

monoklin

Cell param­e­ters α

90°

Cell param­e­ters β

nd

Cell param­e­ters γ

90°

X-Ray Pow­der Diffrac­tion

4.81(70),
3.77(20),
3.05(100),
2.97(40),
2.77(20),
2.68(50),
1.72(30),
1.61(30)

XRD chart Natroniobite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.50 - 6.00

VHN (Hard­ness Vick­ers)

630 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.40 (gemessen)

Preface

Author (Name, Year)

Bulakh & Kukharenko & Knipovich & Kondrat'eva & Baklanova & Baranova,

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 398

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Liuite

FeTiO3

orthorhombisch : mmm : Pnma

4.CC.30

Lueshite

NaNbO3

orthorhombisch : mmm : Pbma

4.CC.30

'Uhligite'

Ca3(Ti,Al,Zr)9O20

4.CC.30

Hiroseite

FeSiO3

orthorhombisch : mmm : Pnma

4.CC.30

Vapnikite

Ca3UO6

monoklin : 2/m : P21/n

4.CC.30

Lakargiite

CaZrO3

orthorhombisch : mmm : Pnma

4.CC.30

Latrappite

(Ca,Na)(Nb,Ti,Fe)O3

orthorhombisch : mmm : Pbnm

4.CC.30

Perovskite

CaTiO3

orthorhombisch : mmm : Pbnm

4.CC.30

Bridgmanite

MgSiO3

orthorhombisch : mmm : Pnma

4.CC.30

Megawite

CaSnO3

orthorhombisch : mmm : Pbnm

4.CC.30

'Natroniobite'

NaNbO3

4.CC.30

Barioperovskite

BaTiO3

orthorhombisch : mm2 : Amm2

4.CC.30

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Perovskite

CaTiO3

orthorhombisch : mmm : Pbnm

IV/C.10-010

Megawite

CaSnO3

orthorhombisch : mmm : Pbnm

IV/C.10-015

Lakargiite

CaZrO3

orthorhombisch : mmm : Pnma

IV/C.10-020

Latrappite

(Ca,Na)(Nb,Ti,Fe)O3

orthorhombisch : mmm : Pbnm

IV/C.10-030

Barioperovskite

BaTiO3

orthorhombisch : mm2 : Amm2

IV/C.10-035

Tausonite

SrTiO3

kubisch : m3m : Pm3m

IV/C.10-040

Loparite-(Ce)

(Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6

IV/C.10-050

Isolueshite

Na(Nb,Ti)O3

kubisch : m3m : Pm3m

IV/C.10-055

Lueshite

NaNbO3

orthorhombisch : mmm : Pbma

IV/C.10-060

'Natroniobite'

NaNbO3

IV/C.10-070

Macedonite

PbTiO3

tetragonal : 4mm : P4mm

IV/C.10-080

Carmeltazite

ZrAl2Ti4O11

orthorhombisch : mmm : Pnma

IV/C.10-100

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Perovskite

CaTiO3

orthorhombisch : mmm : Pbnm

4.CF.100

Latrappite

(Ca,Na)(Nb,Ti,Fe)O3

orthorhombisch : mmm : Pbnm

4.CF.110

Loparite-(Ce)

(Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6

4.CF.120

Lakargiite

CaZrO3

orthorhombisch : mmm : Pnma

4.CF.130

Lueshite

NaNbO3

orthorhombisch : mmm : Pbma

4.CF.160

'Natroniobite'

NaNbO3

4.CF.165

Megawite

CaSnO3

orthorhombisch : mmm : Pbnm

4.CF.170

CNMNC symbol

Symbol

Nnb

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