http://www.spessartit.de/walldorf.html
https://www.mineralbox.biz
https://www.mineraliengrosshandel.com
https://www.mineral-bosse.de
https://www.edelsteine-neuburg.de
'._('einklappen').'
 

Roshchinite (Roshchinit)

Pictures (1 Images total)

Roshchinit
Views (File:
1615401270
): 175
Roshchinit
grau-metallischer Kristall von Roshchinit, Kvartsitovje Gorki, Aksu, Stepnogorsk, Akmola, Kasachstan; BB ~ 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Collection: Marco Gabriel Collection
Location: Kasachstan/Aqmola oblysy/Stepnogorsk/Aksu (Aqsu)-Erzfeld/Kvartsitovje Gorki
Mineral: Roshchinite
Image: 1615401270
License: Usage for Mineralienatlas project only
Roshchinit

grau-metallischer Kristall von Roshchinit, Kvartsitovje Gorki, Aksu, Stepnogorsk, Akmola, Kasachstan; BB 1 mm, analysiert
Collection: Marco Gabriel Collection
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2021-03-10
Locality: Kvartsitovje Gorki / Aksu (Aqsu)-Erzfeld / Stepnogorsk / Aqmola oblysy / Kasachstan

Collectors Summary

Color bleigrau, silber grau
Streak color blass stahlgrau
Hardness (Mohs) 2.5 - 3.5
Cleavages keine
Fracture muschelig bis halbmuschelig
Crystal System orthorhombisch, Pmna

Chemism

Chemical formula

Ag19Pb10Sb51S96

Chemical composition

Antimon, Blei, Silber, Schwefel

Unit weight: 13409.64928 u; Number of atoms in the formula: 176

Info

Empirical formula:

Ag19Pb10Sb51S96

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

22.96

96

54.55

32.0655000

3,078.2880000
Silver

Ag

15.28

19

10.80

107.8682200

2,049.4961800
Antimony

Sb

46.31

51

28.98

121.7601000

6,209.7651000
Lead

Pb

15.45

10

5.68

207.2100000

2,072.1000000

Analysis wt%

Ø Ag : 14.26, Cu : 0.82, Pb : 15.53, Sb : 44.42, As : 1.42, S : 23.15 (Ref: Doklady Akademiia Nauk, SSSR 90)

Strunz 9th edition incl. updates

2.JB.40

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
J: Sulfosalze mit PbS als Vorbild
B: [Galenit]-Derivate mit [Blei] (Pb)
40:Lillianit-Gruppe

Lapis Classification

II/E.23-050

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
E: Sulfosalze (S : As,Sb,Bi = x)
23: Komplexe Blei-Sulfosalze (Pb-Fe/Mn, Pb-Ag) mit Sb (x=2,3 - 2,0)

Classification by Hölzel

2.HA.540

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

Dana 8th edition

03.04.15.07

03: Sulfides - Sulfosalts
04: Sulfides - Sulfosalts where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
15: Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Lillianite group  ⇒ Andorite subgroup

Optical Properties

Color

bleigrau, silber grau

Streak color

blass stahlgrau

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

53

Space Group

Pmna

Cell parameters a (Å)

12.946

Cell parameters b (Å)

19.048

Cell parameters c (Å)

16.932

Cell parameters a/b or c/a

0.680

Cell parameters c/b

0.889

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volumne (ų)

4175.353

X-Ray Powder Diffraction

3.24(60),
2.85(80),
2.70(60),
2.103(30),
2.049(30),
1.989(30),
1.866(50),
1.765(100)
XRD chart Roshchinite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5 - 3.5

VHN (Hardness Vickers)

95 (15g)

Density (g/cm³)

5.27

5.333 ( ρ calc. Mineralienatlas )

Cleavages

keine

Fracture

muschelig bis halbmuschelig

Tenacity

sehr spröde

(Co-)Type locality

(Co-)Type locality

Kasachstan/Aqmola oblysy/Stepnogorsk/Aksu (Aqsu)-Erzfeld/Kvartsitovje Gorki

Preface

Author (Name, Year)

Spiridonov & Petrova & Dashevskaya & Balashov & Klimova, 1990

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 119 (1990) (5), 32

IMA group assignments

Other languages

German

Roshchinit

Spanish

Roshchinita

French

Roshchinite

English

Roshchinite

Russian

Рощинит

Alternative Name

Italian

Roschinita

Roschinite

CNMNC (IMA)-Number

IMA 1989-006

CNMNC symbol

Symbol

Rch

Locations with GPS information