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Cervelleite

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Cervelleit
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Cervelleit

Bambolla Mine (Moctezuma Mine), Moctezuma, Mun. de Moctezuma, Sonora, Mexico; 1,9 x 1,6 cm; Schwarzmetallische Mikrokristalle; daneben ein blaues Oxidationsmineral.

Collection: Marco Gabriel Collection
Contribution: guslis 2018-10-11
Locality: Bambolla Mine (Moctezuma Mine) / Moctezuma / Moctezuma, Municipio / Sonora / Mexiko

Collectors Summary

Color grau, schwarz
Lustre Metallglanz
Hardness (Mohs) 2
Crystal System monoklin, P21/n

Chemism

Chem­ical formula

Ag4TeS

Chem­ical com­po­si­tion

Silber, Tellur, Schwefel

Unit weight: 591.14138 u; Number of atoms in the formula: 6

Info

Empirical formula:

Ag4TeS

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

5.42

1

16.67

32.0655000

32.0655000

Silver

Ag

72.99

4

66.67

107.8682200

431.4728800

Tellurium

Te

21.59

1

16.67

127.6030000

127.6030000

Anal­y­sis wt%

Ag : 73.00, Te : 22.20, S : 5.30 (Ref: European Journal of Mineralogy 89)

Strunz 9th edi­tion incl. updates

2.BA.60

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
A: mit Kupfer (Cu), Silber (Ag), Gold (Au)
60:Hessit-Gruppe

Lapis Clas­sifica­tion

II/B.05-060

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.610

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

02.04.02.02

02: Sulfide Minerals
04: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=2:1

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Acanthite (Argentite) group

Optical Properties

Color

grau, schwarz

Change in color

blau bis blass grün in reflektiertem Licht

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(400) 39.80, , 39.80
(420) 40.00, , 40.00
(440) 40.10, , 40.10
(460) 40.00, , 40.00
(480) 39.70, , 39.70
(500) 39.30, , 39.30
(520) 38.90, , 38.90
(540) 38.30, , 38.30
(560) 37.80, , 37.80
(580) 37.20, , 37.20
(600) 36.80, , 36.80
(620) 36.30, , 36.30
(640) 35.80, , 35.80
(660) 35.40, , 35.40
(680) 34.90, , 34.90
(700) 34.40, , 34.40

Reflection chart Cervelleite

Reflec­tiv­ity Ø

37.79

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/n

Cell param­e­ters a (Å)

4.2696(4)

Cell param­e­ters b (Å)

6.9761(5)

Cell param­e­ters c (Å)

8.0423(7)

Cell param­e­ters a/b or c/a

0.612

Cell param­e­ters c/b

1.153

Cell param­e­ters α

90°

Cell param­e­ters β

100.332(6)°

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

235.657

X-Ray Pow­der Diffrac­tion

6.29(80),
5.74(20),
5.00(100),
4.64(50),
4.24(90),
3.766(70),
2.842(50),
2.596(20)

XRD chart Cervelleite

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2

VHN (Hard­ness Vick­ers)

26 (10g)

Density (g/cm³)

8.53 (berechnet)

8.33 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Mexiko/Sonora/Moctezuma, Municipio/Moctezuma/Bambollita Mine

Type mate­r­ial

Natural History Museum, London, England

Col­lec­tion number of type mate­r­ial

E.1161 BM 1985, 354

Par­a­ge­n­e­sis of type mate­r­ial

Benleonardit, Akanthit, Hessit, Quarz, Dolomit

Preface

Author (Name, Year)

Criddle & Chisholm & Stanley, 1989

References

European Journal of Mineralogy 1 (1989), 371

Bindi, L., Stanley, C.J., Spry, P.G. - Cervelleite, Ag4TeS: solution and description of the crystal structure. Mineralogy and Petrology, 109 (2015), 413-419.

IMA group assignments

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

Hessite

Ag2Te

monoklin : 2/m : P21/c

2.BA.60

Cervelleite

Ag4TeS

monoklin : 2/m : P21/n

2.BA.60

Chenguodaite

Ag9FeTe2S4

2.BA.60

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]

Acanthite

Ag2S

monoklin : 2/m : P21/n

02.04.01.01

Naumannite

Ag2Se

orthorhombisch : 222 : P212121

02.04.01.02

Aguilarite

Ag4SeS

02.04.01.03

Hessite

Ag2Te

monoklin : 2/m : P21/c

02.04.02.01

Cervelleite

Ag4TeS

monoklin : 2/m : P21/n

02.04.02.02

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

02.04.03.01

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

02.04.03.02

Petzite

Ag3AuTe2

kubisch : 432 : I4132

02.04.03.03

Jalpaite

Ag3CuS2

tetragonal : 4/mmm : I41/amd

02.04.04.01

Selenojalpaite

Ag3CuSe2

tetragonal : 4/mmm : I41/amd

02.04.04.02

Mckinstryite

Ag5Cu3S4

orthorhombisch : mmm, mm2 : Pnma

02.04.05.01

Stromeyerite

AgCuS

orthorhombisch : mm2 : Cmc21

02.04.06.01

Eucairite

CuAgSe

orthorhombisch : mmm : Pmmn

02.04.06.02

Chalcocite

Cu2S

monoklin : 2/m : P21/c

02.04.07.01

Djurleite

Cu31S16

monoklin : 2/m : P21/n

02.04.07.02

Digenite

Cu1.8S

trigonal : 3m : R3m

02.04.07.03

Roxbyite

Cu58S32

triklin : 1 : P1

02.04.07.04

Anilite

Cu7S4

orthorhombisch : mmm : Pnma

02.04.07.05

Geerite

Cu8S5

trigonal : 32, 3m, 3m : R32, R3m, R3m

02.04.07.06

Spionkopite

Cu39S28

trigonal : 3m, 32, 3m : P3m1, P321, P3m1

02.04.07.07

Weissite

Cu2-xTe {x ≈ 0.21}

hexagonal : 6/mmm : P6/mmm

02.04.08.01

Bellidoite

Cu2Se

tetragonal : 4/m, : P42/n,

02.04.09.01

Other languages

German

Cervelleit

French

Cervelleite

English

Cervelleite

Spanish

Cervelleíta

Russian

Сервеллеит

Simplified Chinese

硫碲银矿

Japanese

セルベル鉱

Alternative Name

Mineral B (of Karup-Møller & Pauly)

IMA Number

IMA 1986-018

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

German pages

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English pages

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Russian pages

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