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Stibiotantalite

Pictures (4 Images total)

Stibiotantalit
Views (File:
1324314220
): 2269, Rating: 8
Stibiotantalit
Größe: 18x15x01 mm; Fundort: Himalaya Mine, Mesa Grande District, San Diego Co., Kalifornien, USA
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: USA/Kalifornien (California)/San Diego Co./Mesa Grande District/Gem Hill/Himalaya Mine
Mineral: Stibiotantalite
Image: 1324314220
Rating: 8 (votes: 4)
License: Usage for Mineralienatlas project only
Stibiotantalit

Größe: 18x15x01 mm; Fundort: Himalaya Mine, Mesa Grande District, San Diego Co., Kalifornien, USA

Copyright: Rob Lavinsky
Contribution: slugslayer 2011-12-19
Locality: Himalaya Mine / Gem Hill / Mesa Grande District / San Diego Co. / Kalifornien (California) / USA
Stibiotantalit, Tantalit-(Fe)
Views (File:
1324315864
): 2642
Stibiotantalit, Tantalit-(Fe)
Stibiotantalitkristalle mit gelbem Tantalit-Fe;
Größe: 30x20x10 mm;
Fundort: Cryo-Genie Mine, Warner Springs, Warner Springs District, San Diego Co., Kalifornien, USA
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: USA/Kalifornien (California)/San Diego Co./Warner Springs District/Warner Springs/Cryo-Genie Mine
Mineral: Stibiotantalite, Tantalite-(Fe)
Image: 1324315864
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Stibiotantalit, Tantalit-(Fe)

Stibiotantalitkristalle mit gelbem Tantalit-Fe;
Größe: 30x20x10 mm;
Fundort: Cryo-Genie Mine, Warner Springs, Warner Springs District, San Diego Co., Kalifornien, USA

Copyright: Rob Lavinsky
Contribution: slugslayer 2011-12-19
Locality: Cryo-Genie Mine / Warner Springs / Warner Springs District / San Diego Co. / Kalifornien (California) / USA
Stibiotantalit
Views (File:
1324314289
): 2426
Stibiotantalit
Größe: 32x21x06 mm; Fundort: Himalaya Mine, Mesa Grande District, San Diego Co., Kalifornien, USA
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: USA/Kalifornien (California)/San Diego Co./Mesa Grande District/Gem Hill/Himalaya Mine
Mineral: Stibiotantalite
Image: 1324314289
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Stibiotantalit

Größe: 32x21x06 mm; Fundort: Himalaya Mine, Mesa Grande District, San Diego Co., Kalifornien, USA

Copyright: Rob Lavinsky
Contribution: slugslayer 2011-12-19
Locality: Himalaya Mine / Gem Hill / Mesa Grande District / San Diego Co. / Kalifornien (California) / USA
Stibiotantalit (braun) und Stibiomikrolith (gelb)
Views (File:
1613676349
): 331
Stibiotantalit (braun) und Stibiomikrolith (gelb)
Varuträsk, Skelleftea, Västerbotten, SE. BB: 3cm.
Copyright: Doc Diether; Contribution: Doc Diether
Collection: Doc Diether
Location: Schweden/Västerbotten, Provinz/Skelleftea/Varuträsk
Mineral: Stibiomicrolite, Stibiotantalite
Image: 1613676349
License: Usage for Mineralienatlas project only
Stibiotantalit (braun) und Stibiomikrolith (gelb)

Varuträsk, Skelleftea, Västerbotten, SE. BB: 3cm.

Collection: Doc Diether
Copyright: Doc Diether
Contribution: Doc Diether 2021-02-18
Locality: Varuträsk / Skelleftea / Västerbotten, Provinz / Schweden

Collectors Summary

Color braun, grünlichgelb, gelb, hellgelbbraun, dunkelbraun
Streak color hellgelb
Lustre Harzglanz, Wachsglanz
Hardness (Mohs) 5.5
Solubility +++ HF, - Säuren
Crystal System orthorhombisch, Pc21n

Chemism

Chemical formula

Sb3+TaO4

Chemical composition

Antimon, Tantal, Sauerstoff

Unit weight: 366.70573 u; Number of atoms in the formula: 6

Info

Empirical formula:

SbTaO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

17.45

4

66.67

15.9994300

63.9977200

Antimony

Sb

33.20

1

16.67

121.7601000

121.7601000

Tantalum

Ta

49.34

1

16.67

180.9479100

180.9479100

Analysis wt%

Sb2O3 : 40.64, Ta2O5 : 57.29, Nb2O5 : 1.79 (Ref: Dana, 7th ed. 1)

Strunz 9th edition incl. updates

4.DE.30

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
E: Mit mittelgroßen [Kationen]; Mit verschiedenen Polyedern
30:Stibiotantalit-Gruppe

Lapis Classification

IV/D.25-030

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

Classification by Hölzel

4.DK.120

4: OXIDES
D: Dioxides
K: Other Niobates, Tantalates
1: Cervantite-Group

Dana 8th edition

08.01.06.02

08: Multiple Oxides with Nb, Ta, and Ti
01: Multiple Oxides with Nb, Ta, and Ti where A BO4
06: Stibiocolumbite Group

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

braun, grünlichgelb, gelb, hellgelbbraun, dunkelbraun

Streak color

hellgelb

Diaphaneity (Transparency)

transparent, durchscheinend

Lustre

Harzglanz, Wachsglanz

max. Birefringence

0.083

Birefringence chart\! Stibiotantalite title=Birefringence chart Stibiotantalite

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

2.374

RI value β

2.404

RI value γ / ε

2.457

Ri mean

2.412

2V angle

Biaxial (+) 75°

Orientation

X = a, Y = b, Z = c

Dispersion

stark, r < v

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

33

Space Group

Pc21n

Cell parameters a (Å)

4.916

Cell parameters b (Å)

5.542

Cell parameters c (Å)

11.78

Cell parameters a/b or c/a

0.887

Cell parameters c/b

2.126

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

320.94

X-Ray Powder Diffraction

3.55(50),
3.13(100),
2.96(50),
2.678(50),
1.817(50),
1.735(50),
1.715(50),
1.626(50)

XRD chart Stibiotantalite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.5

VHN (Hardness Vickers)

470 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

7.34 (gemssen) 7.583 (berechnet)

7.589 ( ρ calc. Mineralienatlas )

Instability

+++ HF, - Säuren

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Blackwood River/Greenbushes Tinfield/Seifen

Type material

Western Australian Museum, Perth, Astralien

Harvard University, Cambridge, Massachusetts, USA

Collection number of type material

MDC550 (Australien), 111954 (USA)

Preface

Name from

Aus dem Lateinischen für Antimon (STIBIum) in der Zusammensetzung und der Verwandtschaft zu Tantalit.

Author (Name, Year)

Goyder, 1893

References

Transactions and Proceedings and Report of the Royal Society of South Australia 17 (1893), 127

Chemical Communications (1965), 611

Handbook of Mineralogy (Anthony et al.), 3 (1997), 532

Other languages

Spanish

Estibiotantalita

German

Stibiotantalit

English

Stibiotantalite

French

Stibiotantalite

Russian

Стибиотанталит

Alternative Name

Spanish

Stibiotantalita

CNMNC symbol

Symbol

Sttl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 9ebpkNzXjEyI5mKVRDPzeA
GUID (Global unique identifier) 90E9E6F5-D7DC-4C8C-88E6-62954433F378
Database ID 3637