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Betafite (of Hogarth 1977) (Betafit (nach Hogarth 1977))

Pictures (25 Images total)

Betafit
Views (Image: 1292361407): 3120, Rating: 8.4
Betafit

Größe: 20 mm; Fundort: Silver Crater Mine, Faraday Township, Bancroft District, Hastings Co., Ontario, Kanada

Copyright: David K. Joyce
Contribution: slugslayer 2010-12-14
Locality: Silver Crater Mine / Faraday Township / Hastings Co. / Ontario / Kanada
Betafit
Views (Image: 1275566092): 1538
Betafit

Größe: 70x70x46 mm; Fundort: Silver Crater Mine, Faraday Township, Bancroft District, Hastings Co., Ontario, Kanada

Copyright: Joe Freilich
Contribution: slugslayer 2010-06-03
Locality: Silver Crater Mine / Faraday Township / Hastings Co. / Ontario / Kanada
Betafit
Views (Image: 1292361436): 1970
Betafit

Größe: 35 mm; Fundort: Silver Crater Mine, Faraday Township, Bancroft District, Hastings Co., Ontario, Kanada; Eigenfund 1966

Copyright: David K. Joyce
Contribution: slugslayer 2010-12-14
Locality: Silver Crater Mine / Faraday Township / Hastings Co. / Ontario / Kanada
Betafit
Views (Image: 1226244096): 2393
Betafit

Fundort: Betafo Department, Madagaskar; Größe: 88 x 70 x 34 mm

Collection: Robert J. Nowakowski
Copyright: Joe Freilich
Contribution: Stefan 2008-11-09
Locality: Betafo, Distrikt / Vàkinankàratra, Region / Madagaskar
Betafit(gruppe)-Oktaeder auf Monazit-(Ce)
Views (Image: 1186662548): 1526
Betafit(gruppe)-Oktaeder auf Monazit-(Ce)

Bildbreite: 3 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Mayen, Eifel

Copyright: Stephan Wolfsried
Contribution: Hg 2007-08-09
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Betafit
Views (Image: 1275566044): 685
Betafit

Größe: 45x45x33 mm; Fundort: Silver Crater Mine, Faraday Township, Bancroft District, Hastings Co., Ontario, Kanada

Copyright: Joe Freilich
Contribution: slugslayer 2010-06-03
Locality: Silver Crater Mine / Faraday Township / Hastings Co. / Ontario / Kanada

Collectors Summary

Color fast immer farblos
Streak color gelblich weiß
Lustre Harzglanz,bruchflächen Fettglanz
Hardness (Mohs) 5 - 5.5
Cleavages fehlt
Crystal System kubisch, Fd3m
Morphology kubisch

Additional information / Summary

Nahezu alle Betafite sind Mitglied der Pyrochlor-Supergruppe; Meist Oxycalciobetafit oder Oxyuranobetafit

Chemism

Chem­ical formula

(Ca,Na,U)2(Ti,Nb,Ta)2O6(OH)

Chem­ical com­po­si­tion

Calcium, Natrium, Niob, Tantal, Titan, Sauerstoff, Uran, Wasserstoff

Unit weight: 371.87161292 u; Number of atoms in the formula: 12

Info

Empirical formula:

(Ca0.6Na0.3U0.1)2(Ti0.6Nb0.3Ta0.1)2O6(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.27

1

8.33

1.0079470

1.0079470

Oxygen

O

30.12

7

58.33

15.9994300

111.9960100

Sodium

Na

3.71

0.6

5.00

22.9897702

13.7938621

Calcium

Ca

12.93

1.2

10.00

40.0784000

48.0940800

Titanium

Ti

15.45

1.2

10.00

47.8671000

57.4405200

Niobium

Nb

14.99

0.6

5.00

92.9063820

55.7438292

Tantalum

Ta

9.73

0.2

1.67

180.9479100

36.1895820

Uranium

U

12.80

0.2

1.67

238.0289130

47.6057826

Strunz 9th edi­tion incl. updates

4.DH.15

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

IMA sta­tus

2010 durch die Neudefinition der Pyrochlor-Supergruppe diskreditiert; The Canadian Mineralogist Vol. 48, pp. 673-698 (2010

Min­eral sta­tus

Varietät

Var­i­ety / poly­type of

Pyrochlore supergroup

Optical Properties

Color

fast immer farblos

Streak color

gelblich weiß

Diaphane­ity (Trans­parency)

durchscheinend bis opak

Lus­tre

Harzglanz,bruchflächen Fettglanz

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

X-Ray Pow­der Diffrac­tion

2.96(100),
2.56(20),
1.814(40),
1.546(40),
1.482(10),
1.284(10),
1.179(20),
1.148(10)

XRD chart Betafite (of Hogarth 1977)

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

Morphol­ogy

kubisch

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5 - 5.5

Density (g/cm³)

3.7 - 4.9 / Durchschnittlich = 4.3

Cleav­ages

fehlt

Tenac­ity

Spröde

Radioac­tiv­ity

stark radioaktiv

Chem­ical Prop­er­ties and Tests

Glüht beim Erhitzen auf

Preface

Author (Name, Year)

Lacroix, 1912

Col­lector informa­tion

Stark Radioaktiv

Varieties

Tantalbetafite

tantalreiche Varietät von Betafit (nach Hogarth 1977).

Other languages

German

Betafit (nach Hogarth 1977)

Spanish

Betafita (de Hogarth 1977)

French

Betafite (de Hogarth 1977)

English

Betafite (of Hogarth 1977)

Russian

Бетафит

Japanese

ベタホ石

Alternative Name

English

Aluminobetafite

Italian

Betafita

Blomstrandite

Mendeleevite

English

Mendelejevite

Mendeleyevite

Mendelyeevite

German

Tangenit

Spanish

Tangenita

Tangenite

Spanish

Tantalbetafita

Titanbetafit

Titanbetafita

Titanbetafite

Titanbetafite (of Hogarth 1977)

Titanobetafite (of Hogarth 1977)

Simplified Chinese

铌钛铀矿

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

German pages

DeWikiPedia - search for: Betafit (nach Hogarth 1977)
Google-Bilder-Suche - search for: Betafit (nach Hogarth 1977)
Mineralienatlas.de (Forum) - search for: Betafit (nach Hogarth 1977)

English pages

Mindat - search for: Betafite (of Hogarth 1977)
Webmineral - search for:Betafite (of Hogarth 1977)
Handbook-of-Mineralogy - search for: Betafite (of Hogarth 1977)
RRUFF - Raman, XRD and other mineral data - search for: Betafite (of Hogarth 1977)
RRUFF - References and PDF downloads - search for: Betafite (of Hogarth 1977)
American-Mineralogist-Crystal-Structure-Database - search for: Betafite (of Hogarth 1977)
Strahlen.org - search for: Betafite (of Hogarth 1977)

Russian pages

Webmineral.ru - search for: Бетафит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Betafit (nach Hogarth 1977)
Crystal-Treasure.com - search for: Betafit (nach Hogarth 1977)
Bosse - search for: Betafit (nach Hogarth 1977)
Edelsteine Neuburg - Gundolf Fischer - search for: Betafit (nach Hogarth 1977)

Locations with GPS information