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Tungstenite (Tungstenit)

Pictures (10 Images total)

Tungstenit
Views (Image: 1465467498): 678
Tungstenit (SNr: CvO-Tungs-2-1-1)

Bildhöhe etwa 3 mm; dünnblättriger, hexagonaler Tungstenit-Kristall aus Crevola d´Ossola, Val d´ Ossola, Piemont, Italien

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2016-06-09
Locality: Crevola d'Ossola (Marmorbruch) / Ossola, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Tungstenit
Views (Image: 1465467381): 1037
Tungstenit (SNr: CvO-Tung-1-1-1)

Bildbreite etwa 3 mm; dünnblättriger, annähernd hexagonaler Tungstenit aus Crevola d´Ossola, Val d´ Ossola, Piemont, Italien.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2016-06-09
Locality: Crevola d'Ossola (Marmorbruch) / Ossola, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Tungstenit
Views (Image: 1465467419): 748
Tungstenit (SNr: CvO-Tung-1-1-4)

Bildbreite etwa 3 mm; Gruppe dünnblättriger, hexagonaler Tungstenit-Kriställchen aus Crevola d´Ossola, Val d´ Ossola, Piemont, Italien.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2016-06-09
Locality: Crevola d'Ossola (Marmorbruch) / Ossola, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Tungstenit
Views (Image: 1287250109): 1441
Tungstenit

Größe: 0,61 mm; Fundort: Marmorbruch Crevola d'Ossola, Val d'Ossola, Piemont, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-10-16
Locality: Crevola d'Ossola (Marmorbruch) / Ossola, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Tungstenit
Views (Image: 1465467454): 700
Tungstenit (SNr: CvO-Tungs-2-1-1)

Bildbreite etwa 2,5 mm; hexagonaler, dünnblättriger Tungstenit-Kristall aus Crevola d´Ossola, Val d´ Ossola, Piemont, Italien.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2016-06-09
Locality: Crevola d'Ossola (Marmorbruch) / Ossola, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Tungstenit
Views (Image: 1465467479): 370
Tungstenit (SNr: CvO-Tungs-2-1-1)

Bildhöhe etwa 3 mm; dünnblättriger, hexagonaler Tungstenit-Kristall aus Crevola d´Ossola, Val d´ Ossola, Piemont, Italien

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2016-06-09
Locality: Crevola d'Ossola (Marmorbruch) / Ossola, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien

Collectors Summary

Color dunkelbleigrau
Streak color grau
Lustre Metallglanz
Hardness (Mohs) 2.5
Cleavages {???} gut
Solubility +++ Königswasser, - HNO3, HCl
Crystal System hexagonal, P63/mmc

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 : 74.17, S : 25.83 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

2.EA.30

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
E: Metallsulfide mit M:S >= 1:2
A: M:S = 1:2, mit Cu, Ag, Au; Ni, Sn, PGE, Mo, W
30:Molybdänit-Gruppe

Lapis Clas­sifica­tion

II/D.25-040

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

Clas­sifica­tion by Hölzel

2.EA.510

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
A: Me/S=1/2 with Cu,Ag,Au, etc.
5: Molybdenite-Group

IMA sta­tus

anerkanntes Mineral in 2 Polytypen

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

dunkelbleigrau

Streak color

grau

Change in color

weiß in reflektiertem Licht

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Pleochro­ism

stark

Anisotropism

sehr stark

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(470) 16.8, 36.7, 26.8
(546) 16.3, 34.0, 25.2
(589) 16.4, 33.4, 24.9
(650) 16.7, 33.9, 25.3

Reflection chart Tungstenite

Reflec­tiv­ity Ø

25.53

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/mmm

Space Group number

194

Space Group

P63/mmc

Cell param­e­ters a (Å)

3.154

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

12.362

Cell param­e­ters a/b or c/a

3.919

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

106.498

X-Ray Pow­der Diffrac­tion

6.18(100),
3.089(10),
2.731(20),
2.667(20),
2.277(30),
1.833(20),
1.578(20),
1.529(10)

XRD chart Tungstenite

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

Polytypes

Tungstenite-3R

WS2

trigonal

R3m

3m

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.5

Density (g/cm³)

7.4

7.732 ( ρ calc. Mineralienatlas )

Cleav­ages

{???} gut

Insta­bil­ity

+++ Königswasser, - HNO3, HCl

Preface

Name from

Author (Name, Year)

Wells, Butler, 1917

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H315: Verursacht Hautreizungen., H319: Verursacht schwere Augenreizung., H335: Kann die Atemwege reizen., P261: Einatmen von Staub / Rauch / Gas / Nebel / Dampf / Aerosol vermeiden., P305+P351+P338: Bei Kontakt mit den Augen: Einige Minuten lang behutsam mit Wasser spülen. Vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

References

Canadian Mineralogist 10 (1970), 729.

Journal of Solid State Chemistry 70 (1987), 207.

Handbook of Mineralogy (Anthony u.w.), 1 (1990), 543.

Transactions (Doklady) of the USSR Academy of Sciences, Earth Science Sections 373A (2000), 997.

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Jordisite

MoS2

amorph

2.EA.30

'Castaingite'

CuMo2S5

2.EA.30

Drysdallite

Mo(Se,S)2

hexagonal : 6/mmm : P63/mmc

2.EA.30

Tungstenite

WS2

hexagonal : 6/mmm : P63/mmc

2.EA.30

Molybdenite

MoS2

2.EA.30

'Dzhezkazganite'

ReMoCu2PbS6

2.EA.30

'Molybdenite-2H' (Pol.v. Molybdenite)

MoS2

hexagonal : 6/mmm : P63/mmc

2.EA.30

'Molybdenite-3R' (Pol.v. Molybdenite)

MoS2

trigonal : 3m : R3m

2.EA.30

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Rheniite

ReS2

triklin : 1 : P1

II/D.25-005

Molybdenite

MoS2

II/D.25-010

Jordisite

MoS2

amorph

II/D.25-020

Drysdallite

Mo(Se,S)2

hexagonal : 6/mmm : P63/mmc

II/D.25-030

Tungstenite

WS2

hexagonal : 6/mmm : P63/mmc

II/D.25-040

'Castaingite'

CuMo2S5

II/D.25-050

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Molybdenite

MoS2

2.EA.50

'Molybdenite-2H' (Pol.v. Molybdenite)

MoS2

hexagonal : 6/mmm : P63/mmc

2.EA.500

Tungstenite

WS2

hexagonal : 6/mmm : P63/mmc

2.EA.510

Drysdallite

Mo(Se,S)2

hexagonal : 6/mmm : P63/mmc

2.EA.520

'Molybdenite-3R' (Pol.v. Molybdenite)

MoS2

trigonal : 3m : R3m

2.EA.530

Jordisite

MoS2

amorph

2.EA.540

'Castaingite'

CuMo2S5

2.EA.560

Rheniite

ReS2

triklin : 1 : P1

2.EA.580

'Dzhezkazganite'

ReMoCu2PbS6

2.EA.590

Alternative Name

German

Tungstenit-2H

Spanish

Tungstenita

Tungstenite (of Wells and Butler)

English

Tungstenite-2H

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Тунгстенит

Mineral Dealer

German pages

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

Locations with GPS information




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