Weissbergite Mineral Data

Weissbergite Mineral Data +

[Welcome] [Newest Minerals] [Gallery] [About Us] [How to Buy]
We are www.minernet.it, an Italian company which deals rare, unusual,
and showy mineral specimens. We specialise in minerals from Tsumeb,
Mont Saint Hilaire, Bolivia and Major Italian sites.

General Weissbergite Information

Chemical Formula:

TlSbS2

Composition:

Molecular Weight = 390.27 gm

Thallium 52.37 % Tl

Antimony 31.20 % Sb

Sulfur 16.43 % S

______

100.00 %

Empirical Formula:

TlSbS₂

Environment:

In late stage hydrothermal veins that brecciate silicified dolomitic carbonate rocks.

IMA Status:

Approved IMA 1978

Locality:

East ore zone, Carlin mine, Elko, Eureka County, Nevada, USA Link to MinDat.org Location Data.

Name Origin:

Named for Byron G. Weissberg, Chemistry division, D.S.I.R., New Zeland.

Synonym:

ICSD 35498

PDF 29-1331

Weissbergite Image

Images:

Weissbergite

Comments: A metallic grain of weissbergite in matrix.
Location: Lookout Pass, Tooele Co., Utah, USA. Scale: Grain size 0.75 mm.
© Tom Loomis / Dakota Matrix

Weissbergite Crystallography

Axial Ratios:

a:b:c =1.8593:1:0.9531

Cell Dimensions:

a = 11.9, b = 6.4, c = 6.1, Z = 4; alpha = 109.9°, beta = 81.8°, gamma = 105.4° V = 416.85 Den(Calc)= 6.22

Crystal System:

Triclinic - PedialH-M Symbol (1) Space Group: P1

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.971(1), 3.583(0.09), 3.651(0.09),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Rey N , Jumas J C , Olivier-Fourcade J , Philippot E , Acta Crystallographica, Section C , 39 (1983) p.971-974, Sur les composes III-V-VI: Etude structurale du, disulfure d antimoine et de thallium, TlSbS2, Locality: synthetic

Physical Properties of Weissbergite

Cleavage:

[???] Perfect, [???] Very Good, [???] Very Good

Color:

Steel gray.

Density:

5.79

Diaphaniety:

Opaque

Habit:

Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.

Habit:

Striated - Parallel lines on crystal surface or cleavage face.

Hardness:

1.5 - Between Talc and Gypsum

Luster:

Metallic

Streak:

reddish gray

Optical Properties of Weissbergite

RL Anisotrophism:

Strong, blue-green.

RL Color:

Creamy white.

RL Pleochroism:

Weak.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Weissbergite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
470 nm	36.00	38.40
546 nm	35.00	36.80
589 nm	34.50	35.80
650 nm	32.10	33.80

**Calculated Relative Intensity Colors of Weissbergite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	260%
R₁
R₂

Calculated Properties of Weissbergite

Electron Density:

r_electron=5.23 gm/cc
note: r_Weissbergite=6.22 gm/cc.

Fermion Index

Fermion Index = 0.00123
Boson Index = 0.99877

Photoelectric:

PE_Weissbergite=1,026.67 barns/electron
U=PE_Weissbergite x r_electron=5,367.03 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Weissbergite is Not Radioactive

Weissbergite Classification

Dana Class:

3.7.7.1 (3)Sulfides - Sulfosalts

(3.7)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(3.7.7)Dana Group

3.7.7.1 Weissbergite TlSbS2 P1 1

Strunz Class:

II/E.13-60 II - Sulfides and sulphosalts

II/E - Sulfosalts (S : As,Sb,Bi = x) Sulfosalts with predominant Thallium and Mercury, x = 4.0 - 1.6

II/E.13 - Livingstonite - Vaughanite series

II/E.13-10 Livingstonite HgSb4S8 A2/a 2/m

II/E.13-20 Grumiplucite! HgBi2S4 C 2/m 2/m

II/E.13-30 Simonite TlHgAs3S6 P 2₁/n 2/m

II/E.13-40 Vrbaite Tl4Hg3Sb2As8S20 C mca 2/m 2/m 2/m

II/E.13-42 Edenharterite TlPbAs3S6 F dd2 mm2

II/E.13-43 Jentschite! TlPbAs2SbS6 P 2₁/n 2/m

II/E.13-45 Hutchinsonite (Pb,Tl)2As5S9 P bca 2/m 2/m 2/m

II/E.13-50 Lorandite TlAsS2 P 2₁/a 2/m

II/E.13-60 Weissbergite TlSbS2 P1 1

II/E.13-70 Tvalchrelidzeite Hg12(Sb,As)8S15 P1 1

II/E.13-80 Vaughanite TlHgSb4S7 P1 ? 1

Other Weissbergite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Weissbergite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

Search for Weissbergite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Weissbergite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Weissbergite Mineral Data :

Ask about Weissbergite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Weissbergite Specimen Label here :

Weissbergite

TlSbS2
Dana No: 3.7.7.1 Strunz No: II/E.13-60
Locality:

Notes: