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Balkanite

Pictures (1 Images total)

Langgestreckte grauschwarze Balkanit xx
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Langgestreckte grauschwarze Balkanit xx

mit typischer Streifung in Drusen des Bornit; Erasmustollen, Leogang, Salzburg, Österreich; Bildbreite ca 2 mm; visuell bestimmt !
Collection: loismin
Copyright: loismin
Contribution: loismin 2021-01-05
Locality: Erasmusstollen / Schwarzleo, Bergbaurevier / Leogang / Zell am See, Bezirk (Pinzgau) / Salzburg / Österreich

Collectors Summary

Color stahlgrau, weißgrau
Lustre Metallglanz
Hardness (Mohs) 3.5
Cleavages keine
Solubility ++ KCN, HgCl2, FeCl2, - HNO3, HCl, KOH
Crystal System Monoklin, P2/m

Chemism

Chem­ical formula

Ag5Cu9HgS8

Chem­ical com­po­si­tion

Kupfer, Quecksilber, Silber, Schwefel

Unit weight: 1568.3738 u; Number of atoms in the formula: 23

Info

Empirical formula:

Ag5Cu9HgS8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

16.36

8

34.78

32.0655000

256.5240000
Copper

Cu

36.47

9

39.13

63.5463000

571.9167000
Silver

Ag

34.39

5

21.74

107.8682200

539.3411000
Mercury

Hg

12.79

1

4.35

200.5920000

200.5920000

Anal­y­sis wt%

Cu : 37.10, Ag : 33.10, Hg : 13.80, S : 16.90 (Ref: American Mineralogist 73)

Strunz 9th edi­tion incl. updates

2.BD.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
D: mit Quecksilber (Hg), Thallium (Tl)
15:Balkanit-Gruppe

Lapis Clas­sifica­tion

II/B.09-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
B: Sulfide, Selenide und Telluride mit Verhältnis Metall : S,Se,Te > 1:1
9: Komplexe Sulfide und Selenide, vorherrschend mit Kupfer, Quecksilber und Thallium

Clas­sifica­tion by Hölzel

2.BD.120

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
D: With Hg,Tl,(Na,K)
1: Balkanite-Imiterite-Group (with Hg)

Dana 8th edi­tion

02.16.07.01

02: Sulfide Minerals
16: Sulfides - Including Selenides and Tellurides with miscellaneous formulae

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

stahlgrau, weißgrau

Change in color

grauweiß in reflektiertem Licht

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Pleochro­ism

Schwach

Anisotropism

Stark

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(440) 35.40, 30.60, 33.00
(460) 35.60, 31.00, 33.30
(480) 35.40, 31.00, 33.20
(500) 35.00, 30.20, 32.60
(520) 34.00, 28.90, 31.45
(540) 34.00, 28.00, 31.00
(560) 33.40, 27.20, 30.30
(580) 32.80, 26.50, 29.65
(600) 32.40, 26.00, 29.20
(620) 32.10, 25.60, 28.85
(640) 31.80, 25.10, 28.45
(660) 31.50, 24.00, 27.75
Reflection chart Balkanite

Reflec­tiv­ity Ø

30.37

Crystallography

Crystal Sys­tem

Monoklin

Class (H-M)

2/m

Space Group number

10

Space Group

P2/m

Cell param­e­ters a (Å)

9.5539(11)

Cell param­e­ters b (Å)

3.9150(4)

Cell param­e­ters c (Å)

10.6424(12)

Cell param­e­ters a/b or c/a

2.44

Cell param­e­ters c/b

2.718

Cell param­e­ters α

90°

Cell param­e­ters β

90.047(9)°

Cell param­e­ters γ

90°

Z

1

Volumne (ų)

398.063

Kristall struc­ture

Cristian Biagioni, Luca Bindi: Ordered distribution of Cu and Ag in the crystal structure of balkanite, Cu9Ag5HgS8. Eur J Mineral Vol. 29, Nr. 2 (2017) S. 279-285.

X-Ray Pow­der Diffrac­tion

3.09(70),
2.98(100),
2.89(70),
2.61(80),
2.55(100),
2.45(80),
1.985(80),
1.955(90)
XRD chart Balkanite

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

Physical Properties

Hard­ness (Mohs)

3.5

VHN (Hard­ness Vick­ers)

85 (10g)

Density (g/cm³)

6.41 (berechnet) 4.32 (gemessen)

6.542 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Insta­bil­ity

++ KCN, HgCl2, FeCl2, - HNO3, HCl, KOH

(Co-)Type locality

(Co-)Type locality

Bulgarien/Wraza (Vratsa, Врачанска) Oblast/Sedmochislenitsi Mine

Preface

Asso­cia­tions

Bornit, Chalkosin, Djurleit, Digenit, Tennantit, Stromeyerit, quecksilberhaltiges Silber, Cinnabarit

Author (Name, Year)

Atanassov & Kirov, 1973

References

American Mineralogist 58 (1973), 11

Other languages

German

Balkanit

Spanish

Balkanita

English

Balkanite

French

Balkanite

Russian

Балканит

Simplified Chinese

硫汞铜银矿

CNMNC (IMA)-Number

IMA 1971-009

CNMNC symbol

Symbol

Bkn

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

German pages

 DeWikiPedia - search for: Balkanit
Google-Bilder-Suche - search for: Balkanit
Mineralienatlas.de (Forum) - search for: Balkanit

English pages

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

Russian pages

 Webmineral.ru - search for: Балканит

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Balkanit
Crystal-Treasure.com - search for: Balkanit
Bosse - search for: Balkanit
Edelsteine Neuburg - Gundolf Fischer - search for: Balkanit

Locations with GPS information