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Tsnigriite

Collectors Summary

Color grau
Lustre Metallglanz
Hardness (Mohs) 3.5
Crystal System monoklin, Pm, P2/m

Chemism

Chem­ical formula

Ag9SbTe3S3

Chem­ical com­po­si­tion

Antimon, Silber, Tellur, Schwefel

Unit weight: 1571.57958 u; Number of atoms in the formula: 16

Info

Empirical formula:

Ag9SbTe3S3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

6.12

3

18.75

32.0655000

96.1965000

Silver

Ag

61.77

9

56.25

107.8682200

970.8139800

Antimony

Sb

7.75

1

6.25

121.7601000

121.7601000

Tellurium

Te

24.36

3

18.75

127.6030000

382.8090000

Anal­y­sis wt%

Ag : 61.06, Sb : 7.66, Te : 24.08, S : 5.26, Se : 1.94 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 92)

Strunz 9th edi­tion incl. updates

2.LA.55

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
L: unklassifizierte Sulfosalze
A: ohne nennenswertes Pb (Blei)
55:Tsnigriit-Gruppe

Lapis Clas­sifica­tion

II/B.05-075

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
B: Sulfide, Selenide und Telluride mit Verhältnis Metall : S,Se,Te > 1:1
5: Sulfide, Selenide und Telluride mit vorwiegend Kupfer und Silber/Gold

Clas­sifica­tion by Hölzel

2.BA.680

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
A: With Cu,Ag,Au
6: Henryite-Hessite-Group (with Te)

Dana 8th edi­tion

03.01.12.01

03: Sulfides - Sulfosalts
01: Sulfides - Sulfosalts where z/y > 4 - (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

grau

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

m, 2/m

Space Group number

6, 10

Space Group

Pm, P2/m

Cell param­e­ters a (Å)

8.900

Cell param­e­ters b (Å)

8.302

Cell param­e­ters c (Å)

19.49

Cell param­e­ters a/b or c/a

1.072

Cell param­e­ters c/b

2.348

Cell param­e­ters α

90°

Cell param­e­ters β

82.98

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

1429.278

X-Ray Pow­der Diffrac­tion

3.82(60),
3.14(20),
3.02(20),
2.89(40),
2.83(40),
2.22(100),
2.14(30),
2.13(40)

XRD chart Tsnigriite

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

Physical Properties

Hard­ness (Mohs)

3.5

VHN (Hard­ness Vick­ers)

125 (20g)

Density (g/cm³)

7.38

7.303 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Sandomirskaya & Arifulov & Botova & Mozgova & Nenasheva & Tsepin & Siv

References

CNMNC Newsletter No. 50; Mineralogical Magazine, 31 [Formel]

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

Tsnigriite

Ag9SbTe3S3

monoklin : m, 2/m : Pm, P2/m

2.LA.55

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

Acanthite

Ag2S

monoklin : 2/m : P21/n

II/B.05-010

Naumannite

Ag2Se

orthorhombisch : 222 : P212121

II/B.05-030

Hessite

Ag2Te

monoklin : 2/m : P21/c

II/B.05-040

Aguilarite

Ag4SeS

II/B.05-050

Cervelleite

Ag4TeS

monoklin : 2/m : P21/n

II/B.05-060

Tsnigriite

Ag9SbTe3S3

monoklin : m, 2/m : Pm, P2/m

II/B.05-075

Stützite

Ag5-xTe3 {x = 0.24-0.36}

hexagonal : 6m2 : P62m

II/B.05-080

Chenguodaite

Ag9FeTe2S4

II/B.05-085

Empressite

AgTe

orthorhombisch : mmm : Pmnb

II/B.05-090

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

Hessite

Ag2Te

monoklin : 2/m : P21/c

2.BA.600

Cervelleite

Ag4TeS

monoklin : 2/m : P21/n

2.BA.610

Kurilite

Ag8Te3Se

trigonal : 3 : R3

2.BA.620

Stützite

Ag5-xTe3 {x = 0.24-0.36}

hexagonal : 6m2 : P62m

2.BA.650

Henryite

Cu4Ag3Te4

2.BA.660

Tsnigriite

Ag9SbTe3S3

monoklin : m, 2/m : Pm, P2/m

2.BA.680

Jonassonite

Au(Bi,Pb)5S4

2.BA.690

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

Benleonardite

Ag15Cu(Sb,As)2S7Te4

03.01.10.01

Aschamalmite

Pb6Bi2S9

monoklin : 2/m : C2/m

03.01.11.01

Tsnigriite

Ag9SbTe3S3

monoklin : m, 2/m : Pm, P2/m

03.01.12.01

Baksanite

Bi6Te2S3

trigonal : 3m : P3m1

03.01.13.01

IMA Number

IMA 1991-051

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