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Vulcanite

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Vulcanit mit Cameronit
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Vulcanit mit Cameronit
bronzefarbener Vulcanit neben grauem Cameronit in Quarz, Good Hope Mine, Vulcan, Gunnison County, Colorado, USA; BB < 5 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Collection: Marco Gabriel Collection
Location: USA/Colorado/Gunnison Co./Vulcan District/Good Hope Mine
Mineral: Cameronite, Vulcanite
Image: 1591802306
License: Usage for Mineralienatlas project only
Vulcanit mit Cameronit

bronzefarbener Vulcanit neben grauem Cameronit in Quarz, Good Hope Mine, Vulcan, Gunnison County, Colorado, USA; BB < 5 mm

Collection: Marco Gabriel Collection
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-06-10
Locality: Good Hope Mine / Vulcan District / Gunnison Co. / Colorado / USA

Collectors Summary

Color blass bronze, bronzegelb
Lustre Metallglanz
Hardness (Mohs) 1.00 - 2.00
Solubility +++ HNO3, HCl
Crystal System orthorhombisch, Pmnm

Chemism

Chemical formula

CuTe

Chemical composition

Kupfer, Tellur

Unit weight: 191.1493 u; Number of atoms in the formula: 2

Info

Empirical formula:

CuTe

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Copper

Cu

33.24

1

50.00

63.5463000

63.5463000

Tellurium

Te

66.76

1

50.00

127.6030000

127.6030000

Analysis wt%

Cu : 33.25, Te : 66.76 (Ref: berechnet)

Strunz 9th edition incl. updates

2.CB.75

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
75:Vulcanit-Gruppe

Lapis Classification

II/C.24-010

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1

Classification by Hölzel

2.CB.900

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
B: With Zn,Cu (etc), Coordination Number ~[4] Framework of Cornersharing Tetrahedra: Sphalerite-Germanite-Family
9: Unclassified (with Te)

Dana 8th edition

02.08.13.01

02: Sulfide Minerals
08: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blass bronze, bronzegelb

Diaphaneity (Transparency)

Opak

Lustre

Metallglanz

Pleochroism

Sehr stark, leuchtend gelb zu blaugrau

Anisotropism

Sehr stark, brilliant gelb-weiß, gräulich gelb-weiß, gelb-orange zu grau

Reflectivity: (Lambda nm) ↓, ↑, Ø

(400) 25.60, 30.70, 28.15
(420) 24.40, 30.00, 27.20
(440) 23.00, 30.50, 26.75
(460) 21.30, 37.00, 29.15
(480) 19.70, 47.90, 33.80
(500) 18.10, 56.80, 37.45
(520) 16.60, 63.40, 40.00
(540) 15.20, 67.80, 41.50
(560) 13.80, 70.80, 42.30
(580) 12.70, 73.10, 42.90
(600) 11.80, 74.90, 43.35
(620) 11.30, 76.40, 43.85
(640) 11.20, 77.40, 44.30
(660) 11.60, 78.20, 44.90
(680) 12.90, 78.90, 45.90
(700) 15.00, 79.30, 47.15

Reflection chart Vulcanite

Reflectivity Ø

38.67

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

59

Space Group

Pmnm

Cell parameters a (Å)

4.09

Cell parameters b (Å)

6.95

Cell parameters c (Å)

3.15

Cell parameters a/b or c/a

0.588

Cell parameters c/b

0.453

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

89.54

X-Ray Powder Diffraction

6.94(40),
3.52(60),
3.47(30),
2.86(70),
2.65(30),
2.32(30),
2.03(100),
1.762(20)

XRD chart Vulcanite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

1.00 - 2.00

VHN (Hardness Vickers)

34 - 40 (50g)

Density (g/cm³)

7.1 (berechnet)

7.089 ( ρ calc. Mineralienatlas )

Instability

+++ HNO3, HCl

(Co-)Type locality

(Co-)Type locality

USA/Colorado/Gunnison Co./Vulcan District/Good Hope Mine

Type material

National Museum of Natural History, Washington, D.C., USA

Collection number of type material

R933, 85136

Preface

Name from

Nach der Typlocalität Vulcan Distrikt in Colorado USA

Author (Name, Year)

Cameron & Threadgold, 1961

References

Cameron, E.N. and I.M. Threadgold - Vulcanite, a new copper telluride from Colorado, with notes on certain associated minerals. American Mineralogist 46 (1961), 258–268.

Anderko, K. and K. Schubert (1954) Untersuchungen im System Kupfer–Tellur. Zeitschrift für Metallkunde, 4, 371–378

Mineralogy and Petrology 71, 149-154.

Other languages

German

Vulcanit

Spanish

Vulcanita

English

Vulcanite

French

Vulcanite

Russian

Вулканит

Japanese

ヴルカン鉱

Simplified Chinese

软碲铜矿

CNMNC symbol

Symbol

Vul

Locations with GPS information

IDs

GUSID (Global unique identifier short form) G0hvezf0A0-DIGBUt7GECA
GUID (Global unique identifier) 7B6F481B-F437-4F03-8320-6054B7B18408
Database ID 4092