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Stibiocolumbite

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Stibiocolumbit
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Stibiocolumbit
Größe: 2,6 x 1,3 x 0,9 cm, Fundort: Little Three Mine, Ramona District, San Diego Co., Kalifornien, USA
Copyright: Dan Weinrich; Contribution: thdun5
Location: USA/Kalifornien (California)/San Diego Co./Ramona District/Little Three Mine
Mineral: Stibiocolumbite
Image: 1360542910
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Stibiocolumbit

Größe: 2,6 x 1,3 x 0,9 cm, Fundort: Little Three Mine, Ramona District, San Diego Co., Kalifornien, USA

Copyright: Dan Weinrich
Contribution: thdun5 2013-02-11
Locality: Little Three Mine / Ramona District / San Diego Co. / Kalifornien (California) / USA

Collectors Summary

Color braun, bräunlichgelb, grünlichgelb, rötlichbraun
Streak color bräunlich gelb
Hardness (Mohs) 5.5
Solubility +++ HF, - Säuren
Crystal System orthorhombisch, Pc21n

Chemism

Chemical formula

SbNbO4

Chemical composition

Antimon, Niob, Sauerstoff

Unit weight: 278.664202 u; Number of atoms in the formula: 6

Info

Empirical formula:

SbNbO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

22.97

4

66.67

15.9994300

63.9977200

Niobium

Nb

33.34

1

16.67

92.9063820

92.9063820

Antimony

Sb

43.69

1

16.67

121.7601000

121.7601000

Analysis wt%

Sb2O3 : 49.28, Bi2O3 : 0.53, Ta2O5 : 13.00, Nb2O5 : 37.30 (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.25-020

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

Classification by Hölzel

4.DK.110

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

Dana 8th edition

08.01.06.01

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, bräunlichgelb, grünlichgelb, rötlichbraun

Streak color

bräunlich gelb

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.061

Birefringence chart\! Stibiocolumbite title=Birefringence chart Stibiocolumbite

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

2.398

RI value β

2.419

RI value γ / ε

2.459

Ri mean

2.425

2V angle

Biaxial (+) 73°c

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

33

Space Group

Pc21n

Cell parameters a (Å)

4.929

Cell parameters b (Å)

11.797

Cell parameters c (Å)

5.559

Cell parameters a/b or c/a

0.418

Cell parameters c/b

0.471

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

323.241

X-Ray Powder Diffraction

4.54(10),
3.517(20),
3.125(100),
2.947(30),
2.779(10),
2.704(10),
2.464(10),
1.735(20)

XRD chart Stibiocolumbite

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)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.98

5.726 ( ρ calc. Mineralienatlas )

Instability

+++ HF, - Säuren

Preface

Author (Name, Year)

Schaller, 1915

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 530

Other languages

Spanish

Estibiocolumbita

German

Stibiocolumbit

French

Stibiocolumbite

English

Stibiocolumbite

Russian

Стибиоколумбит

Alternative Name

Spanish

Stibiocolumbita

CNMNC symbol

Symbol

Sclb

Locations with GPS information

IDs

GUSID (Global unique identifier short form) lIB08bQkQkG8IVKJAsOAQg
GUID (Global unique identifier) F1748094-24B4-4142-BC21-528902C38042
Database ID 3632