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Paradocrasite

Collectors Summary

Color leuchtend weiß
Streak color metallic
Hardness (Mohs) 3.5
Solubility +++ HNO3, + HCl
Crystal System monoklin, C2

Chemism

Chemical formula

Sb2(Sb,As)2

Chemical composition

Antimon, Arsen

Unit weight: 463.621151 u; Number of atoms in the formula: 4

Info

Empirical formula:

Sb2(Sb0.75As0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Arsenic

As

8.08

0.5

12.50

74.9216020

37.4608010
Antimony

Sb

91.92

3.5

87.50

121.7601000

426.1603500

Analysis wt%

Sb : 82.90, As : 18.60 (Ref: American Mineralogist 71)

Strunz 9th edition incl. updates

1.CA.15

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
C: Halbmetalle (Metalloide) und Nichtmetalle
A: Arsengruppen-Elemente
15:Paradocrasit-Gruppe

Lapis Classification

I/B.01-060

I: ELEMENTE
B: Halbmetalle und Nichtmetalle
1: Arsen-Gruppe

Classification by Hölzel

1.CA.220

1: ELEMENTS
C: Metalloides (As,Sb,Bi)
A:

Dana 8th edition

01.03.03.01

01: Native Elements and Alloys
03: Native Elements with semi-metallic and non-metallic elements

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

leuchtend weiß

Streak color

metallic

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

monoklin

Class (H-M)

2

Space Group number

5

Space Group

C2

Cell parameters a (Å)

7.252

Cell parameters b (Å)

4.172

Cell parameters c (Å)

4.431

Cell parameters a/b or c/a

1.738

Cell parameters c/b

1.062

Cell parameters α

90°

Cell parameters β

123.13

Cell parameters γ

90°

Z

1

Volume (ų)

112.267

X-Ray Powder Diffraction

3.72(50),
3.05(100),
2.219(80),
2.093(80),
1.903(30),
1.855(30),
1.720(70),
1.518(50)
XRD chart Paradocrasite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

118 (100g)

Density (g/cm³)

6.52

6.857 ( ρ calc. Mineralienatlas )

Instability

+++ HNO3, + HCl

(Co-)Type locality

(Co-)Type locality

Australien/New South Wales/Yancowinna Co./Broken Hill/Consols Mine

Preface

Author (Name, Year)

Leonard & Mead & Finney, 1971

References

American Mineralogist 56 (1971), 1127

Other languages

Spanish

Paradocrasita

English

Paradocrasite

French

Paradocrasite

German

Paradokrasit

Alternative Name

German

Paradocrasit

CNMNC (IMA)-Number

IMA 1969-011

CNMNC symbol

Symbol

Pdc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) SwIL3VGk5k-pGpZepYkzUg
GUID (Global unique identifier) DD0B024B-A451-4FE6-A91A-965EA5893352
Database ID 2915