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Rhodium

Pictures (1 Images total)

gediegen Rhodium in Form silbergrauer Körnchen
Views (File:
1675508055
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gediegen Rhodium in Form silbergrauer Körnchen
USA/Alaska/Bethel Borough/Goodnews Bay/Salmon River-Red Mountain District/Fox Gulch, BB = 3,7 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A003675, Donator: Klaus Fleck
Location: USA/Alaska/Bethel Borough/Goodnews Bay/Salmon River-Red Mountain District/Fox Gulch
Mineral: Rhodium
Image: 1675508055
License: Usage for Mineralienatlas project only
gediegen Rhodium in Form silbergrauer Körnchen (SNr: A003675)

USA/Alaska/Bethel Borough/Goodnews Bay/Salmon River-Red Mountain District/Fox Gulch, BB = 3,7 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2023-02-04
Locality: Fox Gulch / Salmon River-Red Mountain District / Goodnews Bay / Bethel Borough / Alaska / USA

You find additional specimen at the Geolitho Museum

Collectors Summary

Color leuchtend weiß
Lustre Metallglanz
Hardness (Mohs) 3.5
Crystal System kubisch, Fm3m

Chemism

Chemical formula

Rh

Chemical composition

Rhodium

Unit weight: 102.905502 u; Number of atoms in the formula: 1

Info

Empirical formula:

Rh

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Rhodium

Rh

100.00

1

100.00

102.9055020

102.9055020

Analysis wt%

Pt : 59.60, Rh : 41.70, PLT : 99.90 (Ref: Canadian Mineralogist 74)

Strunz 9th edition incl. updates

1.AF.10

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen
F: Platin-Gruppen-Elemente (PGE)
10:Rhodium-Gruppe

Lapis Classification

I/A.14-010

I: ELEMENTE
A: Metalle und intermetallische Verbindungen
14: Platinmetalle und Platin-Eisen-Verbindungen, Verbindungen mit Zinn/Blei und Verwandte

Classification by Hölzel

1.AG.200

1: ELEMENTS
A: Metals, Intermetallic Compounds, and Alloys
G: PGE-Group

Hey's Chemical Index of Minerals

01.89

01: Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

Dana 8th edition

01.02.01.03

01: Native Elements and Alloys
02: Native Elements with platinum group metals and alloys
01: Platinum group (Space Group Fm3m)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

leuchtend weiß

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Anisotropism

isotropisch

Reflectivity: (Lambda nm) ↓, ↑, Ø

(470) 75.20, , 75.20
(546) 72.60, , 72.60
(589) 73.30, , 73.30
(650) 75.70, , 75.70
Reflection chart Rhodium

Reflectivity Ø

74.20

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell parameters a (Å)

3.803

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

55.002

X-Ray Powder Diffraction

2.227(60),
1.927(30),
1.362(50),
1.162(50),
0.964(20),
0.885(70),
0.862(80),
0.787(100)
XRD chart Rhodium

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

165 (30g)

Density (g/cm³)

12.347 (berechnet) 16.51 (gemessen)

12.426 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/Montana/Stillwater Co./Stillwater Complex

Type material

Royal Ontario Museum, Toronto, Canada,

Collection number of type material

M33257

Preface

Name from

dem grichischen rhodon - "rosa"

Author (Name, Year)

Cabri & Laflamme, 1974

Detailed description

Rhodium als Element - Technische Daten

Ordnungszahl:

45

Dichte (g/cm3):

12,450

Härte:

6

relat. Atommasse (amu):

102,9055

Atomradius (berechnet) in pm:

135 (173)

Oxidationszahlen:

2, 3, 4

Elektronegativität (Pauling):

2,28

Elektronenkonfiguration:

[Kr]4d85s1

Schmelzpunkt:

1964°C (2237 K)

Siedepunkt:

3695°C (3968 K)

natürl. Häufigkeit:

0,005 ppm

References

CIM Special Volume 23: 132-133.

CIM Special Volume 23: 155.

Canadian Mineralogist 12 (1974), 399-403.

Canadian Mineralogist 29 (1991), 231.

Other languages

German

Rhodium

English

Rhodium

French

Rhodium

Spanish

Rodio

Russian

Родий

Simplified Chinese

自然铑

CNMNC (IMA)-Number

IMA 1974-012

CNMNC symbol

Symbol

Rh

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Y1w-4xrmUUeJTlYgwejxfg
GUID (Global unique identifier) E33E5C63-E61A-4751-894E-5620C1E8F17E
Database ID 3262