'._('einklappen').'
 

Jaszczakite

Collectors Summary

Color zinn-weiß
Streak color schwarz
Lustre Metallglanz
Hardness (Mohs) 2.5 - 3
Fracture unregelmäßig
Crystal System orthorhombisch, Pmmn

Chemism

Chem­ical formula

[Bi3S3][AuS2]

Empir­ical formula (anal­y­sis)

[(Bi2.18Pb0.78Ag0.02Cd0.01Sb0.01As0.01)Σ3.01S3][AuS2]

Addi­tional chem. informa­tion

Das S und Bi Analog von Buckhornit

Chem­ical com­po­si­tion

Bismut, Gold, Schwefel

Unit weight: 979.74338418 u; Number of atoms in the formula: 9.01

Info

Empirical formula:

[(Bi2.18Pb0.78Ag0.02Cd0.01Sb0.01As0.01)S3][AuS2]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

16.36

5

55.49

32.0655000

160.3275000

Arsenic

As

0.08

0.01

0.11

74.9216020

0.7492160

Silver

Ag

0.22

0.02

0.22

107.8682200

2.1573644

Cadmium

Cd

0.11

0.01

0.11

112.4118000

1.1241180

Antimony

Sb

0.12

0.01

0.11

121.7601000

1.2176010

Gold

Au

20.10

1

11.10

196.9665520

196.9665520

Lead

Pb

16.50

0.78

8.66

207.2100000

161.6238000

Bismuth

Bi

46.50

2.18

24.20

208.9803820

455.5772328

Anal­y­sis wt%

Au : 19.90(34),
Ag : 0.22(3),
Bi : 46.29(54),
Pb : 16.50(26),
Cd : 0.11(3),
Sb : 0.12(4),
As : 0.08(3),
S : 16.17(30),
Se : 0.16(6),
Total : 99.55wt%

Strunz 9th edi­tion incl. updates

2.HB.20b

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
H: Sulfosalze mit SnS als Vorbild
B: Mit Cu, Ag, Fe, Sn und Pb
20b:

IMA sta­tus

anerkannt - CNMNC Newsletter November 2016

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

zinn-weiß

Streak color

schwarz

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Pleochro­ism

Im plan polarisierten Licht pleochroitisch von hellgrau bis zu einem etwas bläulichen Grau. Interne Reflektionen sind vorhanden.

Bireflectance

schwach in plan polarisiertem Licht

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(471.1) 49.40, 50.90, 50.15
(548.3) 47.10, 48.80, 47.95
(586.6) 46.50, 47.70, 47.10
(652.3) 48.80, 49.50, 49.15

Reflection chart Jaszczakite

Reflec­tiv­ity Ø

48.59

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

59

Space Group

Pmmn

Cell param­e­ters a (Å)

3.858(1)

Cell param­e­ters b (Å)

12.552(3)

Cell param­e­ters c (Å)

9.289(2)

Cell param­e­ters a/b or c/a

0.307

Cell param­e­ters c/b

0.74

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

449.826

Kristall struc­ture

Struktur bestimmt; Das S und Bi Analog von Buckhornit

X-Ray Pow­der Diffrac­tion

7.467(100),
6.276(90),
5.200(24),
3.096(68),
2.777(26),
2.092(22),
1.929(20),
1.733(18)

XRD chart Jaszczakite

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

Physical Properties

Hard­ness (Mohs)

2.5 - 3

VHN (Hard­ness Vick­ers)

VHN5 115 - 132 (mittel 122) kg/mm-2

Density (g/cm³)

7.327 (berechnet)

7.233 ( ρ calc. Mineralienatlas )

Frac­ture

unregelmäßig

Tenac­ity

spröde

(Co-)Type locality

(Co-)Type locality

Ungarn/Pest, Komitat/Szob, Kreis/Nagybörzsöny/Alsó-Rózsa

Type mate­r­ial

Museo di Storia Naturale, Università di Firenze, Via La Pira 4, I-50121, Firenze, Italien

Col­lec­tion number of type mate­r­ial

3237/I

Par­a­ge­n­e­sis of type mate­r­ial

Das Mineral ist eng mit Arsenopyrit, Pyrit, Markasit, Sphalerit, Chalcopyrit, Gold, Wismut, Bismuthinit, Ikunolith, Jonassonit und Cosalit in einer Matrix aus Quarz verbunden.

Preface

Name from

Jaszczakit ist zu Ehren von John A. Jaszczak, Professor für Physik an der Michigan Technological University, für seine bedeutenden Beiträge über die Komplexität von natürlichem Graphit benannt.

Author (Name, Year)

Luca Bindi und Werner H. Paar (2016)

References

Bindi, L. and Paar, W.H. (2016) Jaszczakite, IMA 2016-077. CNMNC Newsletter No. 34, December 2016, page 1319; Mineralogical Magazine, 80, 1315–1321

Luca Bindi; Werner H. Paar - Jaszczakite, [(Bi,Pb)3S3][AuS2], a new mineral species from Nagybörzsörny, Hungary - European Journal of Mineralogy; Appeared or available online: 3. Februar 2017

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

Jaszczakite

[Bi3S3][AuS2]

orthorhombisch : mmm : Pmmn

2.HB.20b

Other languages

German

Jaszczakit

English

Jaszczakite

IMA Number

IMA 2016-077

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

German pages

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

English pages

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

Mineral Dealer

German pages

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

Locations with GPS information