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Thunderbayite

Collectors Summary

Color schwarz
Streak color schwarz
Lustre Metallglanz
Hardness (Mohs) ca. 3
Cleavages fehlt
Fracture unregelmäßig
Crystal System triklin, P1
Morphology winzige Körner bis 70 μm

Chemism

Chem­ical formula

TlAg3Au3Sb7S6

Empir­ical formula (anal­y­sis)

Tl1.00Ag3.01Au3.03Sb7.12S5.84

Addi­tional chem. informa­tion

Chemisch verwandt mit Criddleit

Chem­ical com­po­si­tion

Antimon, Gold, Silber, Thallium, Schwefel

Unit weight: 2180.06974676 u; Number of atoms in the formula: 20

Info

Empirical formula:

Tl1.00Ag3.01Au3.03Sb7.12S5.84

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

8.59

5.84

29.20

32.0655000

187.2625200

Silver

Ag

14.89

3.01

15.05

107.8682200

324.6833422

Antimony

Sb

39.77

7.12

35.60

121.7601000

866.9319120

Gold

Au

27.38

3.03

15.15

196.9665520

596.8086526

Thallium

Tl

9.38

1

5.00

204.3833200

204.3833200

Strunz 9th edi­tion incl. updates

2.LA.25

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

IMA sta­tus

anerkannt - CNMNC Newsletter 57, August-September (2020)

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

schwarz

Addi­tional color informa­tion

im Auflicht grau

Streak color

schwarz

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Pleochro­ism

schwach von grau-blau nach leicht grünlich blau-grau

Bireflectance

schwach

Anisotropism

schwach bläulich/hellblau; keine Innenreflexe

Reflec­tiv­ity: (Lambda nm) ↓, ↑, Ø

(471.1) 37.9, , 38.4
(548.3) 35.3, , 36.0
(586.6) 33.9, , 34.4
(652.3) 32.0, , 32.5

Reflection chart Thunderbayite

Crystallography

Crystal Sys­tem

triklin

Class (H-M)

1

Space Group number

1

Space Group

P1

Cell param­e­ters a (Å)

8.088(3)

Cell param­e­ters b (Å)

7.854(3)

Cell param­e­ters c (Å)

20.078(8)

Cell param­e­ters a/b or c/a

1.03

Cell param­e­ters c/b

2.556

Cell param­e­ters α

92.52(3)°

Cell param­e­ters β

93.71(3)°

Cell param­e­ters γ

90.15(4)°

Z

2

Volumne (ų)

1271.495

Kristall struc­ture

Struktur ermittelt

X-Ray Pow­der Diffrac­tion

5.63(30), 4.04(100), 3.92(80), 3.60(30), 3.53(30), 2.815(50), 2.727(40), 2.566(45)

XRD chart Thunderbayite

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

Morphol­ogy

winzige Körner bis 70 μm

Physical Properties

Hard­ness (Mohs)

ca. 3

Density (g/cm³)

5.693 ber.

5.694 ( ρ calc. Mineralienatlas )

Cleav­ages

fehlt

Frac­ture

unregelmäßig

(Co-)Type locality

(Co-)Type locality

Kanada/Ontario/Thunder Bay District/Marathon/Hemlo-Gebiet/Hemlo Gold-Lagerstätte

Type mate­r­ial

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

Col­lec­tion number of type mate­r­ial

46582/G

Par­a­ge­n­e­sis of type mate­r­ial

als Ränder um Aurostibit, Stibarsen, Biagioniit, ged. Gold, in Matrix aus Calcit

Preface

Name from

dem Thunder Bay District, Ontario, Kanada, in dem die Hemlo Goldlagerstätte liegt

Author (Name, Year)

Luca Bindi und Andrew C. Roberts (2020)

Dan­ger of confu­sion

Thunderbayit wurde zuerst als Criddleit bestimmt

References

Luca Bindi, Andrew C. Robert: Thunderbayite, TlAg3Au3Sb7S6, a new gold-bearing mineral from the Hemlo gold deposit, Marathon, Ontario, Canada. Mineralogical Magazine Vol. 84, Nr. 6 (2020) S. 805-822.

Bindi, L. and Roberts, A. C.: Thunderbayite, IMA 2020-042, in: CNMNC Newsletter 57, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-495-2020, 2020.

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

Criddleite

TlAg2Au3Sb10S10

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

2.LA.25

Thunderbayite

TlAg3Au3Sb7S6

triklin : 1 : P1

2.LA.25

Other languages

German

Thunderbayit

English

Thunderbayite

IMA Number

IMA 2020-042

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

German pages

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

English pages

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

Mineral Dealer

German pages

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

Locations with GPS information