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Braggite

Collectors Summary

Color weiß
Hardness (Mohs) 6.5
Crystal System tetragonal, P42/m

Chemism

Chem­ical formula

(Pt,Pd,Ni)S

Chem­ical com­po­si­tion

Nickel, Palladium, Platin, Schwefel

Unit weight: 186.908062 u; Number of atoms in the formula: 2

Info

Empirical formula:

(Pt0.6Pd0.3Ni0.1)S

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

17.16

1

50.00

32.0655000

32.0655000

Nickel

Ni

3.14

0.1

5.00

58.6934200

5.8693420

Palladium

Pd

17.08

0.3

15.00

106.4210000

31.9263000

Platinum

Pt

62.62

0.6

30.00

195.0782000

117.0469200

Anal­y­sis wt%

Ø Pt : 56.40, Pd : 20.30, Ni : 5.10, S : 18.20, PLT : 76.70 (Ref: American Mineralogist 78)

Strunz 9th edi­tion incl. updates

2.CC.30

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
C: mit Nickel (Ni), Eisen (Fe), Cobalt (Co), usw.
30:Braggit-Gruppe

Lapis Clas­sifica­tion

II/C.25-020

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

Clas­sifica­tion by Hölzel

2.CC.110

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
C: With Pd,Pt, etc. - Coordination Number ~[4], Planar
1: Braggite-Group

Dana 8th edi­tion

02.08.05.03

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

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

weiß

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/m

Space Group number

84

Space Group

P42/m

Cell param­e­ters a (Å)

6.367

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

6.561

Cell param­e­ters a/b or c/a

1.030

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

265.974

X-Ray Pow­der Diffrac­tion

3.71(50),
2.914(90),
2.848(100),
2.649(50),
2.610(80),
1.854(70),
1.731(50),
1.714(60)

XRD chart Braggite

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)

6.5

VHN (Hard­ness Vick­ers)

997 (100g)

Density (g/cm³)

9.38 (berechnet)

9.335 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Bannister & Hey, 1932

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 67

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

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.30

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

2.CC.30

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.30

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

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

II/C.25-010

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

II/C.25-020

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

II/C.25-030

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

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.100

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

2.CC.110

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

2.CC.150

Jacutingaite

Pt2HgSe3

trigonal : 3m : P3m1

2.CC.180

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Galena

PbS

kubisch : m3m : Fm3m

02.08.01.01

Clausthalite

PbSe

kubisch : m3m : Fm3m

02.08.01.02

Altaite

PbTe

kubisch : m3m : Fm3m

02.08.01.03

Alabandite

MnS

kubisch : m3m : Fm3m

02.08.01.04

Oldhamite

(Ca,Mg,Fe,Mn)S

kubisch : m3m : Fm3m

02.08.01.05

Niningerite

(Mg,Fe2+,Mn)S

kubisch : m3m : Fm3m

02.08.01.06

Borovskite

Pd3SbTe4

kubisch : m3m : Fm3m

02.08.01.07

Crerarite

(Pt,Pb)Bi3(S,Se)4-x

kubisch : m3m : Fm3m

02.08.01.08

Keilite

(Fe,Mg,Mn,Ca,Cr)S

kubisch : m3m : Fm3m

02.08.01.09

Sphalerite

(Zn,Fe)S

kubisch : 43m : F43m

02.08.02.01

Stilleite

ZnSe

kubisch : 43m : F43m

02.08.02.02

Metacinnabar

HgS

kubisch : 43m : F43m

02.08.02.03

Tiemannite

HgSe

kubisch : 43m : F43m

02.08.02.04

Coloradoite

HgTe

kubisch : 43m : F43m

02.08.02.05

Hawleyite

CdS

kubisch : 43m : F43m

02.08.02.06

Polhemusite

(Zn,Hg)S

02.08.03.01

Xingzhongite

(Pb,Cu,Fe)(Ir,Pt,Rh)2S4

kubisch : m3m : Fd3m

02.08.04.01

Cooperite

PtS

tetragonal : 4/mmm : P42/mmc

02.08.05.01

Vysotskite

(Pd,Ni)S

tetragonal : 4/m : P42/m

02.08.05.02

Braggite

(Pt,Pd,Ni)S

tetragonal : 4/m : P42/m

02.08.05.03

Polarite

Pd(Pb,Bi)

orthorhombisch : mm2 : Ccm21

02.08.06.01

Greenockite

CdS

hexagonal : 6mm : P63mc

02.08.07.02

Cadmoselite

CdSe

hexagonal : 6mm : P63mc

02.08.07.03

Rambergite

gamma-MnS

hexagonal : 6mm : P63mc

02.08.07.04

Hypercinnabar

HgS

02.08.08.01

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

German pages

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English pages

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Russian pages

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