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Kurilite

Additional Functions

Collectors Summary

Color hellgrau, stahlgrau
Streak color schwarz
Lustre Metallglanz
Hardness (Mohs) 3
Cleavages keine
Crystal System trigonal, R3

Additional information / Summary

Das zuvor als Kurilit bekannte Mineral wurde von der IMA zurück gewiesen und als Spezies von der Typlokalität Prasolovskoe neu anerkannt.

Chemism

Chem­ical formula

Ag8Te3Se

Empir­ical formula (anal­y­sis)

(Ag7.97Au0.02)Σ7.99Te3.00(Se0.86Te0.12S0.03)Σ1.01

Chem­ical com­po­si­tion

Selen, Silber, Tellur

Unit weight: 1330.64054944 u; Number of atoms in the formula: 12

Info

Empirical formula:

(Ag7.97Au0.02)Te3.00(Se0.86Te0.12S0.03)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

0.07

0.03

0.25

32.0655000

0.9619650

Selenium

Se

5.10

0.86

7.17

78.9630000

67.9081800

Silver

Ag

64.61

7.97

66.42

107.8682200

859.7097134

Tellurium

Te

29.92

3.12

26.00

127.6030000

398.1213600

Gold

Au

0.30

0.02

0.17

196.9665520

3.9393310

Anal­y­sis wt%

Ag : 63.71, Te : 29.48, Se : 5.04 (Ref: Mineralogical Magazine 2010)

Strunz 9th edi­tion incl. updates

2.BA.40

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)
40:Stromeyerit-Gruppe

Lapis Clas­sifica­tion

II/B.07-065

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

Clas­sifica­tion by Hölzel

2.BA.620

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

IMA sta­tus

anerkannt - IMA Web-Seite Jan. 2010

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

hellgrau, stahlgrau

Streak color

schwarz

Change in color

weiß in reflektiertem Licht

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Bireflectance

keine

Anisotropism

Isotropisch

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(400) 42.30, , 42.30
(420) 42.60, , 42.60
(440) 43.00, , 43.00
(460) 43.00, , 43.00
(470) 43.00, , 43.00
(480) 43.00, , 43.00
(500) 42.80, , 42.80
(520) 42.60, , 42.60
(540) 42.40, , 42.40
(546) 42.30, , 42.30
(560) 42.00, , 42.00
(580) 41.60, , 41.60
(589) 41.40, , 41.40
(600) 41.30, , 41.30
(620) 40.80, , 40.80
(640) 40.60, , 40.60
(650) 40.40, , 40.40
(660) 39.00, , 39.00
(680) 39.60, , 39.60
(700) 39.20, , 39.20

Reflection chart Kurilite

Reflec­tiv­ity Ø

41.65

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3

Space Group number

148

Space Group

R3

Cell param­e­ters a (Å)

15.8135(18)

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

19.618(3)

Cell param­e­ters a/b or c/a

1.241

Cell param­e­ters c/b

-

Z

18

Volumne (ų)

4248.556

Kristall struc­ture

Nach Angaben in der Erstbeschreibung nicht aufgeklärt.

Luca Bindi, Mark A. Cooper, Andrew M. McDonald: Twinning and disorder in the crystal structure of kurilite, Ag8Te3Se: toward a new fast ionic conductor? Canadian Mineralogist Vol. 53, No. 1 (2015) S. 159-168.

X-Ray Pow­der Diffrac­tion

3.727(20), 2.996(50), 2.510(30), 2.201(100), 2.152(20), 2.079(30), 2.046(20), 1.817(20)

XRD chart Kurilite

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

Physical Properties

Hard­ness (Mohs)

3

VHN (Hard­ness Vick­ers)

99.9 (25g)

Density (g/cm³)

9.318 (berechnet)

9.361 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

Russland/Ferner Osten, Föderationskreis/Sachalin, Oblast/Kurilen/Kunaschir, Insel/Prasolovskoe

Type mate­r­ial

A.E. Fersman Mineralogical Museum, Academy of Sciences, Moskau, Russland

Col­lec­tion number of type mate­r­ial

3717/1

Preface

Asso­cia­tions

Tennantit-Tetrahedrit-Goldfieldit, Gold, Hessit, Petzit, Sylvanit

Name from

Inselgruppe der Kurilen, wo die Typlokalität liegt

Author (Name, Year)

Vladimir A. Kovalenker, 2010

References

V. A. Kovalenker, O. Yu. Plotinskaya, C. J. Stanley, A. C. Roberts, A. M. McDonald, M. A. Cooper: Kurilite – Ag8Te3Se – a new mineral from the Prasolovskoe deposit, Kuril islands, Russian Federation. Mineralogical Magazine 74 (2010) S. 463-468.

Neue Mineralien - IMA Web-Seite Jan. 2010

American Mineralogist, 99 (2014), 554 (abs. ref. 1)

Bindi, L., Cooper, M.A., McDonald, A.M. - Twinning and disorder in the crystal structure of kurilite, Ag8Te3Se: Toward a new fast conductor? Canadian Mineralogist, 53 (2015), 159-168. [Kristalldaten, Z von 15 auf 18, Dichte von 7.799 auf 9.318]

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

'Kurilite (diskredit.)'

Ag2(Te,Se)

kubisch : 43m, m3m : P43n, Pm3m

2.BA.40

Kurilite

Ag8Te3Se

trigonal : 3 : R3

2.BA.40

Stromeyerite

AgCuS

orthorhombisch : mm2 : Cmc21

2.BA.40

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

Petrovskaite

AuAg(S,Se)

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

II/B.07-010

Uytenbogaardtite

Ag3AuS2

trigonal : 3m : R3c

II/B.07-020

Criddleite

TlAg2Au3Sb10S10

monoklin : 2/m, 2, m : A2/m, A2, Am

II/B.07-030

Penzhinite

(Ag,Cu)4Au(S,Se)4

hexagonal : 622 : P6322

II/B.07-040

Fischesserite

Ag3AuSe2

kubisch : 432 : I4132

II/B.07-050

Petzite

Ag3AuTe2

kubisch : 432 : I4132

II/B.07-060

Kurilite

Ag8Te3Se

trigonal : 3 : R3

II/B.07-065

Muthmannite

AuAgTe2

monoklin : 2/m : P2/m

II/B.07-070

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

Other languages

German

Kurilit

Spanish

Kurilita

English

Kurilite

French

Kurilite

IMA Number

IMA 2009-080

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

German pages

DeWikiPedia - search for: Kurilit
Google-Bilder-Suche - search for: Kurilit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Kurilit

English pages

Mindat - search for: Kurilite
Webmineral - search for:Kurilite
Handbook-of-Mineralogy - search for: Kurilite
RRUFF - Raman, XRD and other mineral data - search for: Kurilite
RRUFF - References and PDF downloads - search for: Kurilite
American-Mineralogist-Crystal-Structure-Database - search for: Kurilite
Athena - search for: Kurilite

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Kurilit
Crystal-Treasure.com - search for: Kurilit
Bosse - search for: Kurilit