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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]

Alternative Name

Japanese

ポタロ鉱

CNMNC symbol

Symbol

Ptr

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

German pages

DeWikiPedia - search for: Potarit
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English pages

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American-Mineralogist-Crystal-Structure-Database - search for: Potarite
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Russian pages

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