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Nekrasovite

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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(Sn_0.6As_0.3Sb_0.1)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

Search for minerals with similar chemistry

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, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
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

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
Volumne (Å³)	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)
	Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

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Physical Properties

Hardness (Mohs)	4.75
VHN (Hardness Vickers)	312 (20g)
Density (g/cm³)	4.62
	4.591 ( ρ calc. Mineralienatlas )

(Co-)Type locality

Usbekistan /Toshkent (Tashkent), Provinz /Angren /Chatkal-Kuraminskii-Gebiet /Kairagach Gold-Lagerstätte

Preface

Author (Name, Year)

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

References

Mineralogicheskiy Zhurnal 6 (1984) (2), 88

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Colusite	Cu₁₂VAs₃S₁₆ kubisch : 43m : P43n	2.CB.30
Germanite	Cu₁₃Fe₂Ge₂S₁₆ kubisch : 43m : P43n	2.CB.30
Ovamboite	Cu₁₀Fe₃WGe₃S₁₆ kubisch	2.CB.30
Maikainite	Cu₁₀Fe₃MoGe₃S₁₆ kubisch	2.CB.30
Nekrasovite	Cu₁₃V(Sn,As,Sb)₃S₁₆ kubisch : 43m : P43n	2.CB.30
Stibiocolusite	Cu₁₃V(Sb,As,Sn)₃S₁₆ kubisch : 43m : P43m	2.CB.30
Germanocolusite	Cu₁₃V(Ge,As)₃S₁₆ kubisch : 43m : P43m	2.CB.30

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Renierite	(Cu,Zn)₁₁(Ge,As)₂Fe₄S₁₆ tetragonal : 42m : P42c	II/C.10-010
Vinciennite	Cu₁₀Fe₄Sn(As,Sb)S₁₆ tetragonal	II/C.10-015
Germanite	Cu₁₃Fe₂Ge₂S₁₆ kubisch : 43m : P43n	II/C.10-020
Nekrasovite	Cu₁₃V(Sn,As,Sb)₃S₁₆ kubisch : 43m : P43n	II/C.10-030
Colusite	Cu₁₂VAs₃S₁₆ kubisch : 43m : P43n	II/C.10-040
Stibiocolusite	Cu₁₃V(Sb,As,Sn)₃S₁₆ kubisch : 43m : P43m	II/C.10-045
Germanocolusite	Cu₁₃V(Ge,As)₃S₁₆ kubisch : 43m : P43m	II/C.10-047
Maikainite	Cu₁₀Fe₃MoGe₃S₁₆ kubisch	II/C.10-050
Ovamboite	Cu₁₀Fe₃WGe₃S₁₆ kubisch	II/C.10-055
Sulvanite	Cu₃VS₄ kubisch : 43m : P43m	II/C.10-060
Polkovicite	(Fe,Pb)₃(Ge,Fe)_1-xS₄ kubisch	II/C.10-070
Morozeviczite	(Pb,Fe)₃Ge_1-xS₄ kubisch	II/C.10-080

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Haycockite	Cu₄Fe₅S₈ orthorhombisch	2.CB.500
Mooihoekite	Cu₉Fe₉S₁₆ tetragonal : 42m : P42m	2.CB.510
Talnakhite	Cu₉(Fe,Ni)₈S₁₆ kubisch : 43m : I43m	2.CB.520
Putoranite	Cu_1.1Fe_1.2S₂ kubisch : m3m	2.CB.525
Colusite	Cu₁₂VAs₃S₁₆ kubisch : 43m : P43n	2.CB.530
Stibiocolusite	Cu₁₃V(Sb,As,Sn)₃S₁₆ kubisch : 43m : P43m	2.CB.535
Germanocolusite	Cu₁₃V(Ge,As)₃S₁₆ kubisch : 43m : P43m	2.CB.540
Nekrasovite	Cu₁₃V(Sn,As,Sb)₃S₁₆ kubisch : 43m : P43n	2.CB.545
Renierite	(Cu,Zn)₁₁(Ge,As)₂Fe₄S₁₆ tetragonal : 42m : P42c	2.CB.550
Germanite	Cu₁₃Fe₂Ge₂S₁₆ kubisch : 43m : P43n	2.CB.555
Maikainite	Cu₁₀Fe₃MoGe₃S₁₆ kubisch	2.CB.560
Ovamboite	Cu₁₀Fe₃WGe₃S₁₆ kubisch	2.CB.565
Mawsonite	Cu₆¹⁺Fe₂³⁺Sn⁴⁺S₈ tetragonal : 42m : P4m2	2.CB.570
Chatkalite	Cu₆Fe²⁺Sn₂S₈ tetragonal : 42m : P4m2	2.CB.575
Chaméanite	(Cu,Fe)₄As(Se,S)₄ kubisch	2.CB.590
Lautite	CuAsS orthorhombisch : mm2 : Pna2₁	2.CB.595

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Colusite	Cu₁₂VAs₃S₁₆ kubisch : 43m : P43n	03.01.01.01
Germanocolusite	Cu₁₃V(Ge,As)₃S₁₆ kubisch : 43m : P43m	03.01.01.02
Nekrasovite	Cu₁₃V(Sn,As,Sb)₃S₁₆ kubisch : 43m : P43n	03.01.01.03
Stibiocolusite	Cu₁₃V(Sb,As,Sn)₃S₁₆ kubisch : 43m : P43m	03.01.01.04
Vinciennite	Cu₁₀Fe₄Sn(As,Sb)S₁₆ tetragonal	03.01.02.01
Lévyclaudite	Pb₈Sn₇Cu₃(Bi,Sb)₃S₂₈ monoklin	03.01.03.01
Cylindrite	Pb₃Sn₄FeSb₂S₁₄ triklin	03.01.04.01
Franckeite	Pb_21.7Sn_9.3Fe_4.0Sb_8.1S_56.9 triklin : 1 : C1	03.01.04.02
'Incaite' (Var.v. Franckeite)	(Pb,Ag)₄Sn₄FeSb₂S₁₅ monoklin	03.01.04.03
'Potosíite' (Var.v. Franckeite)	Pb₄₈Sn₁₈⁴⁺Fe₇²⁺Sb₁₆³⁺S₁₁₅ triklin	03.01.04.04
Miharaite	PbCu₄FeBiS₆ orthorhombisch : mm2 : Pb2₁m	03.01.05.01
Billingsleyite	Ag₇(As,Sb)S₆ kubisch : 23 : P2₁3	03.01.06.01
'Pearceite-T2ac' (Pol.v. Pearceite-Tac)	[Ag₉CuS₄][(Ag,Cu)₆(As,Sb)₂S₇] trigonal : 32 : P321	03.01.07.01
Polybasite	(Ag,Cu)₁₆Sb₂S₁₁	03.01.07.02
Cupropolybasite	[Cu₆Sb₂S₇][Ag₉CuS₄] trigonal : 3m : P3m1	03.01.07.03
Pearceite-Tac	[Ag₉CuS₄][(Ag,Cu)₆(As,Sb)₂S₇] trigonal : 3m : P3m1	03.01.08.01
'Polybasite-Tac' (Pol.v. Polybasite)	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇] trigonal : 3m : P3m1	03.01.08.02
Petrovicite	PbHgCu₃BiSe₅ orthorhombisch : mmm, mm2 : Pnam, Pna2₁	03.01.09.01
Mazzettiite	Ag₃HgPbSbTe₅ orthorhombisch	03.01.09.02

CNMNC (IMA)-Number

IMA 1983-051

CNMNC symbol

Symbol

Nek

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

German pages	DeWikiPedia - search for: Nekrasovit Google-Bilder-Suche - search for: Nekrasovit Mineralogisch-Petrographisches-Institut Hamburg - search for: Nekrasovit
English pages	Mindat - search for: Nekrasovite Webmineral - search for:Nekrasovite Handbook-of-Mineralogy - search for: Nekrasovite RRUFF - Raman, XRD and other mineral data - search for: Nekrasovite RRUFF - References and PDF downloads - search for: Nekrasovite American-Mineralogist-Crystal-Structure-Database - search for: Nekrasovite Athena - search for: Nekrasovite Strahlen.org - search for: Nekrasovite Mineralienatls.de (Forum) - search for: Nekrasovit
Russian pages	Webmineral.ru - search for: Некрасовит

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