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Fergusonite-(Y)-β

Pictures (3 Images total)

β-Fergusonit-(Y)
Views (Image: 1193504182): 1018
β-Fergusonit-(Y)

SEM analysiert; Bildbreite: 3 mm; Fundort: Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA

Copyright: Stephan Wolfsried
Contribution: Hg 2007-10-27
Locality: Washington Pass / Okanogan Co. / Washington / USA
Fergusonite-(Y)-β, Ferriallanite-(Ce), Zircon, Kainosite-(Y), Quartz
Views (Image: 1530917857): 347
Fergusonite-(Y)-β, Ferriallanite-(Ce), Zircon, Kainosite-(Y), Quartz

Brown agregate of tabular beta-Fergusonite-(Y) crystals associated with orange Zircon, black Ferriallanite-(Ce), white Kainosite-(Y) and glassy Quartz into apoeudialyte pseudomorphose. FOV 10x8 mm....

Copyright: Pavel M. Kartashov
Contribution: Stefan 2018-07-07
Locality: Neprimetnyi-Pegmatit / Ulyn Khuren / Khaldzan-Buragtag-Massiv / Altai-Hochgebirge / Chowd, Aimag / Mongolei
Fergusonite-(Y)-β
Views (Image: 1530917922): 329
Fergusonite-(Y)-β

Parallel agregates of brown tabular beta-Fergusonite-(Y) crystals associating with black Ferriallanite-(Ce) and orange Zircon into apoeudyalite pseudomorphose. FOV 4x3 mm. Note special nontetragona...

Copyright: Pavel M. Kartashov
Contribution: Stefan 2018-07-07
Locality: Neprimetnyi-Pegmatit / Ulyn Khuren / Khaldzan-Buragtag-Massiv / Altai-Hochgebirge / Chowd, Aimag / Mongolei

Collectors Summary

Color hellgelb
Streak color weiß
Hardness (Mohs) 5.50 - 6.00
Solubility +++ HF, + andere Säuren, !Ultraschallbad
Crystal System monoklin, I2/a

Chemism

Chem­ical formula

YNbO4

Chem­ical com­po­si­tion

Niob, Yttrium, Sauerstoff

Unit weight: 245.809954 u; Number of atoms in the formula: 6

Info

Empirical formula:

YNbO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

26.04

4

66.67

15.9994300

63.9977200

Yttrium

Y

36.17

1

16.67

88.9058520

88.9058520

Niobium

Nb

37.80

1

16.67

92.9063820

92.9063820

Anal­y­sis wt%

Y2O3 : 45.93, Nb2O5 : 54.07, Ln2O3 : 45.93 (Ref: berechnet)

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.24-010

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

Clas­sifica­tion by Hölzel

4.DJ.410

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

hellgelb

Streak color

weiß

RI value α / ω / n

2.2GlD

Ri mean

2.2

2V angle

i metam.

Crystallography

Crystal Sys­tem

monoklin

Space Group

I2/a

Cell param­e­ters a (Å)

5.179

Cell param­e­ters b (Å)

11.089

Cell param­e­ters c (Å)

5.118

Cell param­e­ters a/b or c/a

0.467

Cell param­e­ters c/b

0.462

Cell param­e­ters α

90°

Cell param­e­ters β

91.28

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

293.853

Kristall struc­ture

aufgeklärt,
für eine As-reiche Varietät siehe: Alessandro Guastoni, Fernando Cámara, and Fabrizio Nestola: Arsenic-rich fergusonite-beta-(Y) from Mount Cervandone (Western Alps, Italy): Crystal structure and genetic implications. American Mineralogist 95 (2010) S. 487-494.

X-Ray Pow­der Diffrac­tion

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.50 - 6.00

VHN (Hard­ness Vick­ers)

730a

Density (g/cm³)

5.65 (gemessen)

5.556 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HF, + andere Säuren, !Ultraschallbad

Preface

Name from

Robert Ferguson

In Anspielung auf seine dimorphe Beziehung zu Fergusonit (Y). Nach Robert Ferguson (8. September 1769 - 3. Dezember 1840, London, England), schottischer Gutsbesitzer, Politiker und Mineraliensammler.

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-(Y)-β

Spanish

Fergusonita-beta-(Y)

English

Fergusonite-(Y)-β

French

Fergusonite-beta-(Y)

Russian

Фергусонит-бета-(Y)

Alternative Name

Beta-Fergusonite-(Y)

German

Fergusonit-beta-(Y)

German

Fergusonit-β-(Y)

English

Fergusonite-beta-(Y)

English

Fergusonite-β-(Y)

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

German pages

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

English pages

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

Russian pages

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

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Fergusonit-(Y)-β
Crystal-Treasure.com - search for: Fergusonit-(Y)-β
Bosse - search for: Fergusonit-(Y)-β

Locations with GPS information