Arcubisite Mineral Data

General Arcubisite Information

Chemical Formula:

Ag6CuBiS4

Composition:

Molecular Weight = 1,058.03 gm

Iron 0.53 % Fe

Copper 6.01 % Cu

Silver 61.17 % Ag

Bismuth 15.80 % Bi

Tellurium 2.41 % Te

Lead 1.96 % Pb

Sulfur 12.12 % S

______

100.00 %

Empirical Formula:

Ag₆CuBi_0.8Pb_0.1Fe²⁺_0.1Te_0.2S₄

Environment:

In a cryolite deposit. An inadequately characterized mineral.

IMA Status:

Approved IMA 1976

Locality:

Ivigtut, Greenland. Link to MinDat.org Location Data.

Name Origin:

Named for the composition (ARgentum, CUprum, and BISmuth).

Name Pronunciation:

Arcubisite + Pronunciation

Arcubisite Crystallography

Crystal System:

Orthorhombic Space Group: Ortho ?

Physical Properties of Arcubisite

Color:

Steel gray.

Diaphaneity:

Opaque

Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Luster:

Metallic

Optical Properties of Arcubisite

RL Anisotrophism:

Distinct in air, strong in oil, cream to bluish green.

RL Color:

Light gray with faint olive-brown tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Arcubisite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
440 nm	33.60	33.40
460 nm	33.50	33.80
480 nm	33.10	33.60
500 nm	32.50	33.90
520 nm	32.10	33.20
540 nm	32.10	33.70
560 nm	31.80	33.70
580 nm	31.40	33.90
600 nm	31.20	33.70
620 nm	31.00	34.10
640 nm	31.00	33.50
660 nm	30.90	33.40

**Calculated Relative Intensity Colors of Arcubisite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	270%	280%
R₁
R₂

Calculated Properties of Arcubisite

Fermion Index:

Fermion Index = 0.0072764702
Boson Index = 0.9927235298

Photoelectric:

PE_Arcubisite= 496.85 barns/electron
U=PE_Arcubisite x rElectron Density= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Arcubisite is Not Radioactive

Arcubisite Classification

Dana Class:

03.02.06.01 (03)Sulfides - Sulfosalts

(03.02)where z/y = 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.02.06)Dana Group

03.02.06.01 Arcubisite Ag6CuBiS4 Ortho ? Ortho

03.02.06.02 Fettelite! [Ag6As2S7][Ag10HgAs2S8] C 2 2

Strunz Class:

02.LA.40 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.L - Unclassified Sulfosalts

02.LA -Without essential Pb

02.LA.40 Arcubisite Ag6CuBiS4 Ortho ? Ortho

Other Arcubisite Information

References:

NAME( Dana8) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Arcubisite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Arcubisite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Arcubisite :

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.

Ask about Arcubisite 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 Espa�ol

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

Arcubisite

Ag6CuBiS4
Dana No: 03.02.06.01 Strunz No: 02.LA.40
Locality:

Notes: