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Potarite

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Potarit
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Potarit

Größe: 2 x 1,5 x 0,9 cm, Fundort: Serro Frio, Minas Gerais, Brasilien.

Copyright: Dan Weinrich
Contribution: thdun5 2010-04-18
Locality: Serro Frio (Cerrado Frio) / Minas Gerais / Südosten (Região Sudeste) / Brasilien

Collectors Summary

Color cremefarben bis weißlich-cremefarben
Streak color metallisch
Lustre Metallglanz
Hardness (Mohs) 3.5
Solubility +++ HNO3
Crystal System tetragonal, P4/mmm

Chemism

Chem­ical formula

PdHg

Chem­ical com­po­si­tion

Palladium, Quecksilber

Unit weight: 307.013 u; Number of atoms in the formula: 2

Info

Empirical formula:

PdHg

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Palladium

Pd

34.66

1

50.00

106.4210000

106.4210000

Mercury

Hg

65.34

1

50.00

200.5920000

200.5920000

Anal­y­sis wt%

Pd : 34.70, Hg : 65.30, PLT : 34.70 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

1.AD.25

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen
D: Quecksilber-Amalgam-Familie
25:Palladiumamalgam-Gruppe

Lapis Clas­sifica­tion

I/A.02-090

I: ELEMENTE
A: Metalle und intermetallische Verbindungen

Clas­sifica­tion by Hölzel

1.AE.500

1: ELEMENTS
A: Metals, Intermetallic Compounds, and Alloys
E: Mercury & Amalgam-Group

Hey's Chem­ical Index of Min­er­als

01.67

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

Dana 8th edi­tion

01.02.04.04

01: Native Elements and Alloys
02: Native Elements with platinum group metals and alloys
04: Tetraferroplatinum group (Space Group P4/mmm)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

cremefarben bis weißlich-cremefarben

Streak color

metallisch

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Crystallography

Crystal Sys­tem

tetragonal

Class (H-M)

4/mmm

Space Group number

123

Space Group

P4/mmm

Cell param­e­ters a (Å)

3.031

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

3.692

Cell param­e­ters a/b or c/a

1.218

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

1

Volumne (ų)

33.918

X-Ray Pow­der Diffrac­tion

2.34(10), 2.14(5), 1.402(5), 1.274(8), 1.174(5), 1.144(5), 0.928(5), 0.850(8)

XRD chart Potarite

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)

3.5

VHN (Hard­ness Vick­ers)

132 (100g)

Density (g/cm³)

14.88 (gemessen) 15.09 (berechnet)

15.03 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HNO3

(Co-)Type locality

(Co-)Type locality

Guyana/Potaro-Siparuni, Region/Kangaruma, Distrikt/Potaro, Fluss/Kaietur Falls

Type mate­r­ial

Frankreich: MHN-Paris - Type: T: 125263 (don. JB Harrison)

United Kingdom: NHM-London - Type: T: BM 1924,192

USA: NMNH-Washington - Type: T: 095350 (Essequibo Fluss, Amu Creek; don. Govern. Guyana, durch JB Harrison, 1926)

Preface

Author (Name, Year)

Harrison, 1926

References

Harrison JB: Bull. Soc. fr. Min. (1926) 49, 5.

Monatshefte für Chemie 83 (1952), 287.

American Mineralogist 45 (1960), 1093.

Handbook of Mineralogy (Anthony et al.), 1 (1990), 419.

Mineralogical Magazine 63 (1999), 369.

Canadian Mineralogist 40 (2002), 341.

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

Potarite

PdHg

tetragonal : 4/mmm : P4/mmm

1.AD.25

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

Mercury

Hg

trigonal : 3m : R3m

I/A.02-010

Kolymite

Cu7Hg6

kubisch : 43m : I43m

I/A.02-020

Belendorffite

Cu7Hg6

trigonal : 3m : R3m

I/A.02-022

Eugenite

Ag11Hg2

kubisch : 43m : I43m

I/A.02-028

Moschellandsbergite

Ag2Hg3

kubisch : 23 : I23

I/A.02-030

Luanheite

Ag3Hg

I/A.02-040

Schachnerite

Ag1.1Hg0.9

hexagonal : 6/mmm : P63/mmc

I/A.02-050

Paraschachnerite

Ag1.2Hg0.8

orthorhombisch : mmm, mm2, mm2 : Cmcm, Cmc21, C2cm

I/A.02-060

'Goldamalgam'

(Au,Ag)Hg

kubisch : m3m : Im3m

I/A.02-070

Weishanite

(Au,Ag)1.2Hg0.8

hexagonal : 6/mmm : P63/mmc

I/A.02-080

Potarite

PdHg

tetragonal : 4/mmm : P4/mmm

I/A.02-090

Leadamalgam

Pb0.7Hg0.3

tetragonal : 4/mmm : I4/mmm

I/A.02-100

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

Potarite

PdHg

tetragonal : 4/mmm : P4/mmm

1.AE.500

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

Platinum

Pt

kubisch : m3m : Fm3m

01.02.01.01

Iridium

Ir

kubisch : m3m : Fm3m

01.02.01.02

Rhodium

Rh

kubisch : m3m : Fm3m

01.02.01.03

Palladium

Pd

kubisch : m3m : Fm3m

01.02.01.04

Osmium

Os

hexagonal : 6/mmm : P63/mmc

01.02.02.01

Ruthenium

Ru

hexagonal : 6/mmm : P63/mmc

01.02.02.02

Rutheniridosmine

(Ir,Os,Ru)

hexagonal : 6/mmm : P63/mmc

01.02.02.03

'Rhenium'

Re

hexagonal : 6/mmm : P63/mmc

01.02.02.04

Hexaferrum

(Fe,Os,Ru,Ir)

hexagonal : 6/mmm : P63/mmc

01.02.02.04

Hongshiite

PtCu

01.02.03.01

Tetraferroplatinum

PtFe

tetragonal : 4/mmm : P4/mmm

01.02.04.01

Tulameenite

Pt(Cu,Fe)

tetragonal : 4/mmm : P4/mmm

01.02.04.02

Ferronickelplatinum

Pt2FeNi

tetragonal : 4/mmm : P4/mmm

01.02.04.03

Potarite

PdHg

tetragonal : 4/mmm : P4/mmm

01.02.04.04

Rustenburgite

Pt3Sn

kubisch : m3m : Fm3m

01.02.05.02

Atokite

(Pd,Pt)3Sn

kubisch : m3m : Fm3m

01.02.05.03

Zvyagintsevite

Pd3Pb

kubisch : m3m : Pm3m

01.02.05.04

Chengdeite

Ir3Fe

kubisch : m3m : Pm3m

01.02.05.05

Yixunite

Pt3In

kubisch : m3m : Pm3m

01.02.05.06

Paolovite

Pd2Sn

orthorhombisch : mmm : Pbnm

01.02.06.01

Isoferroplatinum

Pt3Fe

kubisch : m3m : Pm3m

01.02.06.01

Taimyrite-I

(Pd,Cu,Pt)3Sn

01.02.07.01

Tatyanaite

(Pt,Pd,Cu)9Cu3Sn4

orthorhombisch : mm2, 222, mmm : Pmm2, P222, Pmmm

01.02.07.02

Cabriite

Pd2SnCu

orthorhombisch : mmm : Pmmm

01.02.08.01

Stannopalladinite

Pd3Sn2

hexagonal : 6/mmm : P63/mmc

01.02.09.01

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

Other languages

German

Potarit

Spanish

Potarita

English

Potarite

French

Potarite

Russian

Потарит

Simplified Chinese

汞钯矿

Alternative Name

Japanese

ポタロ鉱

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

German pages

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

English pages

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RRUFF - Raman, XRD and other mineral data - search for: Potarite
RRUFF - References and PDF downloads - search for: Potarite
American-Mineralogist-Crystal-Structure-Database - search for: Potarite
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Russian pages

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German pages

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