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Tungstenite-3R (Tungstenit-3R)

Collectors Summary

Color dunkelbleigrau
Lustre Metallglanz
Crystal System trigonal, R3m

Additional information / Summary

Tungstenit wird in 2 Polymorphe unterschieden

Chemism

Chemical formula

WS2

Chemical composition

Schwefel, Wolfram

Unit weight: 247.972 u; Number of atoms in the formula: 3

Info

Empirical formula:

WS2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

25.86

2

66.67

32.0655000

64.1310000

Tungsten

W

74.14

1

33.33

183.8410000

183.8410000

Analysis wt%

W : 74.15, S : 25.85 (Ref: berechnet)

Mineral status

Polytype

Variety / polytype of

Tungstenite

Optical Properties

Color

dunkelbleigrau

Change in color

weiß in reflektiertem Licht

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

sehr stark

Anisotropism

sehr stark

Reflectivity: (Lambda nm) ↓, ↑, Ø

(470) 19.6, 39.8, 29.7
(546) 18.2, 35.8, 27.0
(589) 17.8, 35.9, 26.4
(650) 18.0, 34.8, 26.4

Reflection chart Tungstenite-3R

Reflectivity Ø

27.38

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

160

Space Group

R3m

Cell parameters a (Å)

3.149

Cell parameters b (Å)

-

Cell parameters c (Å)

18.434

Cell parameters a/b or c/a

5.854

Cell parameters c/b

-

Z

3

Volumne (ų)

158.305

X-Ray Powder Diffraction

6.13(100),
3.04(30),
2.674(60),
2.328(30),
2.037(40),
1.571(50),
1.528(70),
1.100(40)

XRD chart Tungstenite-3R

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

7.8 (berechnet)

7.803 ( ρ calc. Mineralienatlas )

Other languages

German

Tungstenit-3R

English

Tungstenite-3R

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

German pages

DeWikiPedia - search for: Tungstenit-3R
Google-Bilder-Suche - search for: Tungstenit-3R
Mineralogisch-Petrographisches-Institut Hamburg - search for: Tungstenit-3R

English pages

Mindat - search for: Tungstenite-3R
Webmineral - search for:Tungstenite-3R
Handbook-of-Mineralogy - search for: Tungstenite-3R
RRUFF - Raman, XRD and other mineral data - search for: Tungstenite-3R
RRUFF - References and PDF downloads - search for: Tungstenite-3R
American-Mineralogist-Crystal-Structure-Database - search for: Tungstenite-3R
Athena - search for: Tungstenite-3R

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Tungstenit-3R
Crystal-Treasure.com - search for: Tungstenit-3R
Bosse - search for: Tungstenit-3R



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