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Padĕraite (Paderait)

Additional Functions

Collectors Summary

Color cremeweiß
Streak color lead grau
Crystal System monoklin, P21/m

Chemism

Chemical formula

AgPb2Cu6Bi11S22

Chemical composition

Bismut, Blei, Kupfer, Silber, Schwefel

Unit weight: 3907.791222 u; Number of atoms in the formula: 42

Info

Empirical formula:

AgPb2Cu6Bi11S22

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

18.05

22

52.38

32.0655000

705.4410000
Copper

Cu

9.76

6

14.29

63.5463000

381.2778000
Silver

Ag

2.76

1

2.38

107.8682200

107.8682200
Lead

Pb

10.60

2

4.76

207.2100000

414.4200000
Bismuth

Bi

58.83

11

26.19

208.9803820

2,298.7842020

Analysis wt%

Cu : 11.64, Ag : 0.76, Pb : 7.32, Bi : 61.56, S : 18.28 (Ref: Canadian Mineralogist 2006)

Strunz 9th edition incl. updates

2.JA.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
J: Sulfosalze mit PbS als Vorbild
A: Ketten als Flächen verbunden
10:Cuprobismutit-Gruppe

Lapis Classification

II/E.34-100

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)
34: Blei-Sulfosalze mit Wismut (x= 6,0 - 1,6); Galenobismutit-Reihe

Classification by Hölzel

2.HA.240

2: SULFIDES
H: PbS Archetype
A: With Cu,Ag,Pb
2: Cuprobismutite Series

Dana 8th edition

03.08.04.02

03: Sulfides - Sulfosalts
08: Sulfides - Sulfosalts where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

cremeweiß

Streak color

lead grau

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell parameters a (Å)

17.585

Cell parameters b (Å)

3.939

Cell parameters c (Å)

28.453

Cell parameters a/b or c/a

4.464

Cell parameters c/b

7.223

Cell parameters α

90°

Cell parameters β

105.42

Cell parameters γ

90°

Z

2

Volumne (ų)

1899.917

X-Ray Powder Diffraction

6.21(30),
3.63(70),
3.21(60),
3.18(30),
3.06(100),
2.85(40),
2.66(40),
2.19(30)
XRD chart Padĕraite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

6.91

6.83 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Rumänien/Bihor, Kreis/Nucet/Baita Bergbau-Distrikt (Rézbánya, Băița-Bihor)

Preface

Name from

Karel Padĕra (1923-2010), tschechischer Mineraloge der Charles Universität in Prag

Author (Name, Year)

Mumme & Zák, 1985

References

Canadian Mineralogist 44 (2006), 481

Other languages

German

Padĕrait

Spanish

Padĕraita

English

Padĕraite

French

Padĕraite

Japanese

ﾊﾟﾃﾞﾗｱｲﾄ

Alternative Name

German

Paderait

Spanish

Paderaita

English

Paderaite

CNMNC symbol

Symbol

Pdĕ