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

Nekrasovite

Collectors Summary

Color rötlichbraun
Hardness (Mohs) 4.75
Crystal System kubisch, P43n

Chemism

Chemical formula

Cu13V(Sn,As,Sb)3S16

Chemical composition

Antimon, Arsen, Kupfer, Zinn, Schwefel, Vanadium

Unit weight: 1707.7281418 u; Number of atoms in the formula: 33

Info

Empirical formula:

Cu13V(Sn0.6As0.3Sb0.1)3S16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

30.04

16

48.48

32.0655000

513.0480000

Vanadium

V

2.98

1

3.03

50.9415100

50.9415100

Copper

Cu

48.37

13

39.39

63.5463000

826.1019000

Arsenic

As

3.95

0.9

2.73

74.9216020

67.4294418

Tin

Sn

12.51

1.8

5.45

118.7107000

213.6792600

Antimony

Sb

2.14

0.3

0.91

121.7601000

36.5280300

Analysis wt%

Cu : 44.18, Fe : 4.11, V : 1.93, Sn : 11.40, As : 3.03, Sb : 4.20, S : 29.86 (Ref: Mineralogicheskii Zhurnal 84)

Strunz 9th edition incl. updates

2.CB.30

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
30:Germanit-Gruppe

Lapis Classification

II/C.10-030

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1

Classification by Hölzel

2.CB.545

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
B: With Zn,Cu (etc), Coordination Number ~[4] Framework of Cornersharing Tetrahedra: Sphalerite-Germanite-Family
5: Germanite-Colusite-Mawsonite-Group

Dana 8th edition

03.01.01.03

03: Sulfides - Sulfosalts
01: Sulfides - Sulfosalts where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
01: Colusite Group (Isometric: P-43n) with Cu and V

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Colusit-Gruppe

Optical Properties

Color

rötlichbraun

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

kubisch

Class (H-M)

43m

Space Group number

218

Space Group

P43n

Cell parameters a (Å)

10.73

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

1235.376

X-Ray Powder Diffraction

3.41(10),
3.09(100),
2.68(20),
1.894(80),
1.617(60),
1.230(50),
1.096(30),
1.033(30)

XRD chart Nekrasovite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.75

VHN (Hardness Vickers)

312 (20g)

Density (g/cm³)

4.62

4.591 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Kovalenker & Evstigneeva & Malov & Trubkin & Gorshkov & Geinke, 1984

References

Mineralogicheskiy Zhurnal 6 (1984) (2), 88

IMA group assignments

Other languages

German

Nekrasovit

Spanish

Nekrasovita

French

Nekrasovite

English

Nekrasovite

Russian

Некрасовит

CNMNC (IMA)-Number

IMA 1983-051

CNMNC symbol

Symbol

Nek

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Und1aZnHHk2AtnR5IQlM1w
GUID (Global unique identifier) 69757752-C799-4D1E-80B6-747921094CD7
Database ID 2717