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Fergusonite-(Ce)

Pictures (8 Images total)

Fergusonit-(Ce)
Views (Image: 1286786405): 1492
Fergusonit-(Ce)

Größe: 0,31 mm, Fundort: Steinbruch San Vito, San Vito, Ercolano, Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2010-10-11
Locality: Steinbruch San Vito (Cava San Vito) / San Vito / Ercolano / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Fergusonit-(Ce)
Views (Image: 1278145028): 783
Fergusonit-(Ce)

Kristallgröße: 0,4 mm, Fundort: Steinbruch San Vito, San Vito, Ercolano, Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien, Italien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-07-03
Locality: Steinbruch San Vito (Cava San Vito) / San Vito / Ercolano / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Fergusonit
Views (Image: 1204309187): 1497
Fergusonit

Rechts im Bild ein schwarzer blockiger Kristall gefunden von Heinz Hublitz im August 2007 am Beryller West, Untersulzbachtal, Pinzgau, Salzburg, Österreich, BB= 3 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Joachim Esche
Contribution: Manfred Früchtl 2008-02-29
Locality: Beryller / Untersulzbachtal / Zell am See, Bezirk (Pinzgau) / Salzburg / Österreich
Fergusonit
Views (Image: 1235310083): 1162
Fergusonit (SNr: A001157)

FO: Hopffeldboden, Obersulzbachtal, Hohe Tauern, Salzburg, Österreich; ein langprismatischer dunkelbrauner Kristall

Collection: Lithothek der Münchener Micromounter
Copyright: Peter Köhlen
Contribution: Münchener Micromounter 2009-02-22
Locality: Hopffeldboden / Obersulzbachtal / Neukirchen am Großvenediger / Zell am See, Bezirk (Pinzgau) / Salzburg / Österreich
Fergusonit-(Ce) mit Sanidin
Views (Image: 1245590656): 2242
Fergusonit-(Ce) mit Sanidin

Fundort: Steinbruch San Vito, San Vito, Ercolano, Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-21
Locality: Steinbruch San Vito (Cava San Vito) / San Vito / Ercolano / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Fergusonit-(Ce)
Views (Image: 1321609354): 522
Fergusonit-(Ce)

J.G. Gole Quarry, Madawaska, Murchison Township, Nipissing District, Ontario, Canada;
Größe des Kristalls: 4,7 cm

Copyright: David K. Joyce
Contribution: Collector 2011-11-18
Locality: J. G. Gole Quarry / Madawaska / South Algonquin Township / Nipissing District / Ontario / Kanada

Collectors Summary

Color dunkelrot, schwarz
Streak color rötlichbraun
Solubility ++ HF, + Säuren, Ultraschallbad!
Crystal System tetragonal, I41/a

Chemism

Chem­ical formula

CeNbO4

Chem­ical com­po­si­tion

Cerium, Niob, Sauerstoff

Unit weight: 297.020202 u; Number of atoms in the formula: 6

Info

Empirical formula:

CeNbO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

21.55

4

66.67

15.9994300

63.9977200

Niobium

Nb

31.28

1

16.67

92.9063820

92.9063820

Cerium

Ce

47.17

1

16.67

140.1161000

140.1161000

Anal­y­sis wt%

Nb2O5 : 42.01, Ta2O5 : 1.00, ThO2 : 0.88, UO2 : 1.11, La2O3 : 6.47, Ce2O3 : 18.32, Pr2O3 : 2.16, Nd2O3 : 11.31, Sm2O3 : 1.62, Gd2O3 : 2.69, Dy2O3 : 0.92, Er2O3 : 1.08, Yb2O3 : 0.86, Y2O3 : 6.25, CaO : 0.81, H2O : 1.79, Ln2O3 : 52.26 (Ref: Novye Danye Min.86)

Strunz 9th edi­tion incl. updates

7.GA.05

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
G: Molybdate und Wolframate
A: Ohne zusätzliche [Anionen] oder H2O
05:Scheelit-Gruppe

Lapis Clas­sifica­tion

IV/D.24-050

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

Clas­sifica­tion by Hölzel

4.DJ.470

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

Dana 8th edi­tion

08.01.01.03

08: Multiple Oxides with Nb, Ta, and Ti
01: Multiple Oxides with Nb, Ta, and Ti where A BO4
01: Fergusonite Group (Tetragonal)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

Mineralstatus fragwürdig

Optical Properties

Color

dunkelrot, schwarz

Streak color

rötlichbraun

Diaphane­ity (Trans­parency)

durchscheinend bis opak

max. Birefrin­gence

0.10

Birefringence chart\! Fergusonite-(Ce) title=Birefringence chart Fergusonite-(Ce)

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

2.30

RI value γ / ε

2.20

Ri mean

2.267

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/m

Space Group number

88

Space Group

I41/a

Cell param­e­ters a (Å)

5.37692

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

11.59514

Cell param­e­ters a/b or c/a

2.156

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

335.23

X-Ray Pow­der Diffrac­tion

3.09(100),
2.77(30),
2.61(20),
1.90(40),
1.88(20),
1.66(20),
1.65(20),
1.58(20)

XRD chart Fergusonite-(Ce)

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

5.48

5.885 ( ρ calc. Mineralienatlas )

Insta­bil­ity

++ HF, + Säuren, Ultraschallbad!

Preface

Name from

Robert Ferguson

In Anspielung auf seine chemische Zusammensetzung und nach Robert Ferguson (8. September 1769 - 3. Dezember 1840, London, England), schottischer Gutsbesitzer, Politiker und Mineraliensammler.

Author (Name, Year)

Makarochkin & Mineev & Aleksandrov, 1965

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Novye Dannye o Mineralakh 33 (1986), 43

American Mineralogist 74 (1989), 946

Acta Crystallographica C60 (2004) i37-i39 -[Chemie, Gitter]

Physics and Chemistry of Minerals 33 (2006), 145

Other languages

German

Fergusonit-(Ce)

Spanish

Fergusonita-(Ce)

English

Fergusonite-(Ce)

French

Fergusonite-(Ce)

Russian

Фергусонит-(Ce)

Simplified Chinese

褐铈铌矿

Japanese

セリウムフェルグソン石

Alternative Name

German

β-Fergusonit-(Ce)

CNMNC symbol

Symbol

Fgs-Ce

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

German pages

DeWikiPedia - search for: Fergusonit-(Ce)
Google-Bilder-Suche - search for: Fergusonit-(Ce)
Mineralienatlas.de (Forum) - search for: Fergusonit-(Ce)

English pages

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

Russian pages

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

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Fergusonit-(Ce)
Crystal-Treasure.com - search for: Fergusonit-(Ce)
Bosse - search for: Fergusonit-(Ce)
Edelsteine Neuburg - Gundolf Fischer - search for: Fergusonit-(Ce)

Locations with GPS information