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Pseudomertieite

Collectors Summary

Color messinggelb
Lustre Metallglanz
Hardness (Mohs) 5.5
Crystal System hexagonal,

Chemism

Chemical formula

Pd5+x(Sb,As)2-x {x = 0.1-0.2}

Chemical composition

Antimon, Arsen, Palladium

Unit weight: 751.4800559 u; Number of atoms in the formula: 7

Info

Empirical formula:

Pd5.2(Sb0.75As0.25)1.8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Arsenic

As

4.49

0.45

6.43

74.9216020

33.7147209

Palladium

Pd

73.64

5.2

74.29

106.4210000

553.3892000

Antimony

Sb

21.87

1.35

19.29

121.7601000

164.3761350

Analysis wt%

Ø Pd : 72.30, Sb : 24.70, As : 3.30, PLT : 72.30 (Ref: American Mineralogist 73)

Strunz 9th edition incl. updates

2.AC.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
A: Legierungen und legierungsartige Verbindungen
C: Verbindungen von Halbmetallen mit Platin-Gruppen-Elementen (PGE)
15:Isomertieit-Gruppe

Lapis Classification

II/A.05-060

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
A: Legierungen und legierungsartige Verbindungen
5: mit Metallen der Platin-gruppe (v.a. Pd)

Classification by Hölzel

2.AC.210

2: SULFIDES
A: Alloys of Cu,Ag,Au,Ni,Pd with As,Sb,Bi,(Te)
C: With Pd
2: Stillwaterite-Group

IMA status

Neudefinition von der CNMNC anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

messinggelb

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Crystallography

Crystal System

hexagonal

Cell parameters a (Å)

15.04

Cell parameters b (Å)

-

Cell parameters c (Å)

22.41

Cell parameters a/b or c/a

1.490

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

36

Volume (ų)

4390.037

X-Ray Powder Diffraction

2.281(100),
2.171(100),
2.014(50),
1.573(50),
1.341(50),
1.222(50),
0.794(70),
0.780(70)

XRD chart Pseudomertieite

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

Physical Properties

Hardness (Mohs)

5.5

VHN (Hardness Vickers)

578 (50g)

Density (g/cm³)

10.32 (berechnet)

10.232 ( ρ calc. Mineralienatlas )

Preface

Name from

John Beaver Mertie, Jr. (1888-1980), amerikanischer Geologe

Author (Name, Year)

Desborough & Finney & Leonard, 1973

References

American Mineralogist 58 (1973), 1

Canadian Mineralogist 13 (1975), 321

Frédéric Hatert; Stuart J. Mills; Marco Pasero; Ritsuro Miyawaki; Ferdinando Bosi: CNMNC guidelines for the nomenclature of polymorphs and polysomes. Mineralogical Magazine Vol. 87, Nr. 2 (2023) S. 225-232. Umbenennung in Pseudomertieit

Other languages

German

Pseudomertieit

umbenannt; CNMNC Newsletter 69; Mineralogical Magazine, 86

English

Pseudomertieite

renamed; CNMNC Newsletter 69; Mineralogical Magazine, 86

old name

German

Mertieit-I

umbenannt; CNMNC Newsletter 69; Mineralogical Magazine, 86

French

Mertieite-I

English

Mertieite-I

renamed; CNMNC Newsletter 69; Mineralogical Magazine, 86

Spanish

Mertieíta-I

Russian

Мертиит-I

CNMNC symbol

Symbol

Met-I

Locations with GPS information

IDs

GUSID (Global unique identifier short form) WMf_w_lpFEO5uIs4wOHsZA
GUID (Global unique identifier) C3FFC758-69F9-4314-B9B8-8B38C0E1EC64
Database ID 2476