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Berndtite-4H

Collectors Summary

Color goldgelb
Streak color goldgelb
Hardness (Mohs) 1 - 2
Crystal System hexagonal, P63mc

Chemism

Chem­ical formula

SnS2

Chem­ical com­po­si­tion

Zinn, Schwefel

Unit weight: 182.8417 u; Number of atoms in the formula: 3

Info

Empirical formula:

SnS2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

35.07

2

66.67

32.0655000

64.1310000

Tin

Sn

64.93

1

33.33

118.7107000

118.7107000

Anal­y­sis wt%

Sn : 64.95, S : 35.05 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

2.EA.10

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
10:Calaverit-Gruppe

Clas­sifica­tion by Hölzel

2.EA.340

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
A: Me/S=1/2 with Cu,Ag,Au, etc.
3: With Ni,Sn,Pd,Pt, etc. - Melonite-Group

IMA sta­tus

anerkanntes Mineral, Polytyp

Min­eral sta­tus

anerkanntes Mineral

Var­i­ety / poly­type of

Berndtite

Optical Properties

Color

goldgelb

Streak color

goldgelb

Change in color

intensive bräunliche bis orangegelbe interne Reflektionen

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6mm

Space Group number

186

Space Group

P63mc

Cell param­e­ters a (Å)

3.645

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

11.802

Cell param­e­ters a/b or c/a

3.238

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

2

Volumne (ų)

135.794

X-Ray Pow­der Diffrac­tion

5.90(10),
3.16(30),
3.05(20),
2.78(40),
1.82(100),
1.74(20),
1.58(30),
1.52(10);

XRD chart Berndtite-4H

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

Physical Properties

Hard­ness (Mohs)

1 - 2

VHN (Hard­ness Vick­ers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.57 (berechnet)

4.471 ( ρ calc. Mineralienatlas )

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

'Berndtite'

SnS2

2.EA.10

Berndtite-2T

SnS2

trigonal : 3m : P3m1

2.EA.10

Berndtite-4H

SnS2

hexagonal : 6mm : P63mc

2.EA.10

Calaverite

AuTe2

monoklin : 2/m : C2/m

2.EA.10

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

Kitkaite

NiTeSe

trigonal : 3m : P3m1

2.EA.300

Melonite

NiTe2

trigonal : 3m : P3m1

2.EA.310

Berndtite-2T

SnS2

trigonal : 3m : P3m1

2.EA.330

Berndtite-4H

SnS2

hexagonal : 6mm : P63mc

2.EA.340

Kotulskite

Pd(Te,Bi)2-x {x ≈ 0.4}

hexagonal : 6/mmm : P63/mmc

2.EA.360

Merenskyite

PdTe2

trigonal : 3m : P3m1

2.EA.370

Moncheite

(Pt,Pd)(Te,Bi)2

trigonal : 3m : P3m1

2.EA.380

Sudovikovite

PtSe2

trigonal : 3m : P3m1

2.EA.385

Shuangfengite

IrTe2

trigonal : 3m : P3m1

2.EA.390

Other languages

German

Berndtit-4H

English

Berndtite-4H

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

German pages

DeWikiPedia - search for: Berndtit-4H
Google-Bilder-Suche - search for: Berndtit-4H
Mineralogisch-Petrographisches-Institut Hamburg - search for: Berndtit-4H

English pages

Mindat - search for: Berndtite-4H
Webmineral - search for:Berndtite-4H
Handbook-of-Mineralogy - search for: Berndtite-4H
RRUFF - Raman, XRD and other mineral data - search for: Berndtite-4H
RRUFF - References and PDF downloads - search for: Berndtite-4H
American-Mineralogist-Crystal-Structure-Database - search for: Berndtite-4H
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Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Berndtit-4H
Crystal-Treasure.com - search for: Berndtit-4H
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Locations with GPS information




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