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Fergusonite-(Ce)-β

Additional Functions

Collectors Summary

Color rötlichbraun
Streak color braun
Hardness (Mohs) 5.50 - 6.00
Solubility - Säuren
Crystal System monoklin, I2/a

Chemism

Chem­ical formula

(Ce,La,Nd)NbO4

Chem­ical com­po­si­tion

Cerium, Lanthanum, Neodymium, Niob, Sauerstoff

Unit weight: 297.069718 u; Number of atoms in the formula: 6

Info

Empirical formula:

(Ce0.6La0.3Nd0.1)NbO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

21.54

4

66.67

15.9994300

63.9977200

Niobium

Nb

31.27

1

16.67

92.9063820

92.9063820

Lanthanum

La

14.03

0.3

5.00

138.9055200

41.6716560

Cerium

Ce

28.30

0.6

10.00

140.1161000

84.0696600

Neodymium

Nd

4.86

0.1

1.67

144.2430000

14.4243000

Anal­y­sis wt%

CaO : 1.26, FeO : 0.95, La2O3 : 11.25, Ce2O3 : 20.02, Pr2O3 : 3.39, Nd2O3 : 10.08, Sm2O3 : 1.26, Gd2O3 : 0.49, ThO2 : 8.01, Nb2O5 : 42.98, Ln2O3 : 46.88 (Ref: Geochimica,73)

Strunz 9th edi­tion incl. updates

4.DG.10

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
G: Mit großen (± mittelgroßen) [Kationen]; Ketten kantenverknüpfter Oktaeder
10:ß-Fergusonit-Gruppe

Lapis Clas­sifica­tion

IV/D.24-020

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Clas­sifica­tion by Hölzel

4.DJ.430

4: OXIDES
D: Dioxides
J: Titanates, Niobates and Tantalates, C large, V medium ò 2
4: Fergusonite-Group

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

rötlichbraun

Streak color

braun

RI value α / ω / n

2.155

Ri mean

2.155

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

I2/a

Cell param­e­ters a (Å)

5.5350

Cell param­e­ters b (Å)

11.3991

Cell param­e­ters c (Å)

5.1590

Cell param­e­ters a/b or c/a

0.486

Cell param­e­ters c/b

0.453

Cell param­e­ters α

90°

Cell param­e­ters β

94.6°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

324.454

X-Ray Pow­der Diffrac­tion

3.21(100),
3.07(100),
1.963(80),
1.911(70),
1.709(60),
1.674(60),
1.611(60)

XRD chart Fergusonite-(Ce)-β

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

Crystal Structure 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)

5.34 (gemessen)

6.081 ( ρ calc. Mineralienatlas )

Insta­bil­ity

- Säuren

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

Yttrotantalite-(Y)

(Y,U,Fe2+)(Ta,Nb)(O,OH)4

4.DG.10

Fergusonite-(Y)-β

YNbO4

monoklin : I2/a

4.DG.10

Fergusonite-(Ce)-β

(Ce,La,Nd)NbO4

monoklin : 2/m : I2/a

4.DG.10

Fergusonite-beta-(Nd)

(Nd,Ce)NbO4

4.DG.10

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

Takanawaite-(Y)

Y[Ta,Nb]O4

monoklin : 2/m : I2/a

IV/D.24-003

Iwashiroite-(Y)

YTaO4

monoklin : 2/m : P2/a

IV/D.24-005

Fergusonite-(Y)-β

YNbO4

monoklin : I2/a

IV/D.24-010

Fergusonite-(Ce)-β

(Ce,La,Nd)NbO4

monoklin : 2/m : I2/a

IV/D.24-020

Fergusonite-beta-(Nd)

(Nd,Ce)NbO4

IV/D.24-030

Fergusonite-(Y)

YNbO4

tetragonal : 4/m : I41/a

IV/D.24-040

'Fergusonite-(Ce)'

CeNbO4

tetragonal : 4/m : I41/a

IV/D.24-050

'Fergusonite-(Nd)'

(Nd,Ce)(Nb,Ti)O4

IV/D.24-060

Formanite-(Y)

YTaO4

monoklin : 2/m : P2/a

IV/D.24-070

Raspite

PbWO4

monoklin : 2/m : P21/a

IV/D.24-080

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

Yttrotantalite-(Y)

(Y,U,Fe2+)(Ta,Nb)(O,OH)4

4.DJ.400

Fergusonite-(Y)-β

YNbO4

monoklin : I2/a

4.DJ.410

Fergusonite-beta-(Nd)

(Nd,Ce)NbO4

4.DJ.420

Fergusonite-(Ce)-β

(Ce,La,Nd)NbO4

monoklin : 2/m : I2/a

4.DJ.430

Takanawaite-(Y)

Y[Ta,Nb]O4

monoklin : 2/m : I2/a

4.DJ.440

Fergusonite-(Y)

YNbO4

tetragonal : 4/m : I41/a

4.DJ.450

Formanite-(Y)

YTaO4

monoklin : 2/m : P2/a

4.DJ.460

Iwashiroite-(Y)

YTaO4

monoklin : 2/m : P2/a

4.DJ.465

'Fergusonite-(Ce)'

CeNbO4

tetragonal : 4/m : I41/a

4.DJ.470

Other languages

German

Fergusonit-(Ce)-β

Spanish

Fergusonita-beta-(Ce)

English

Fergusonite-(Ce)-β

French

Fergusonite-Beta-(Ce)

Russian

Фергусонит-бета-(Ce)

Alternative Name

German

Beta-Fergusonit-(Ce)

English

Beta-fergusonite-(Ce)

German

Fergusonit-beta-(Ce)

English

Fergusonite-(Ce)-beta

English

Fergusonite-beta-(Ce)

English

Fergusonite-β-(Ce)

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Fergusonit-(Ce)-β
Google-Bilder-Suche - search for: Fergusonit-(Ce)-β
Mineralogisch-Petrographisches-Institut Hamburg - search for: Fergusonit-(Ce)-β

English pages

Mindat - search for: Fergusonite-(Ce)-β
Webmineral - search for:Fergusonite-(Ce)-β
Handbook-of-Mineralogy - search for: Fergusonite-(Ce)-β
RRUFF - Raman, XRD and other mineral data - search for: Fergusonite-(Ce)-β
RRUFF - References and PDF downloads - search for: Fergusonite-(Ce)-β
American-Mineralogist-Crystal-Structure-Database - search for: Fergusonite-(Ce)-β
Athena - search for: Fergusonite-(Ce)-β

Russian pages

Webmineral.ru - search for: Фергусонит-бета-(Ce)

Mineral Dealer

German pages

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