Andorite Mineral Data

General Andorite Information

Chemical Formula:

PbAgSb3S6

Composition:

Molecular Weight = 872.71 gm

Silver 12.36 % Ag

Antimony 41.85 % Sb

Lead 23.74 % Pb

Sulfur 22.05 % S

______

100.00 %

Empirical Formula:

PbAgSb₃S₆

IMA Status:

Valid Species (Pre-IMA) 1894

Locality:

In the USA, at the Keyser mine, Morey district, Nye Co., Nevada; in the Thompson mine, Darwin district, Inyo Co., California; and at Bear Basin, King Co., Washington. From near Takla L Link to MinDat.org Location Data.

Name Origin:

For Andor von Semsey (1833-1923), a Hungarian nobleman, who was also an amateur mineralogist.

Name Pronunciation:

Andorite

Synonym:

ICSD 20818

PDF 35-596

Andorite Image

Images:

Andorite

Comments: Metallic, prismatic andorite crystal.
Location: Baie Sprie (Felsobanya), Maramures, Romania. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Andorite Ferrokesterite

Comments: Small, tetragonal crystal of gray ferrokesterite (circled in thumbnail) attached on the surface of a larger striated andorite specimen.
Location: San Jose mine, Oruro, Bolivia. Scale: Crystal size 0.2 mm.
© John Veevaert

Andorite Crystallography

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

By Intensity(I/I_o): 3.3(1), 2.9(0.8), 3.45(0.4),

Forms:

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Forms: ( 1 0 1) ( 0 1 0) ( 0 3 1) ( 1 1 1) ( 2 2 1) ( 1 1 0) ( 1 0 0) ( 1 1 2) ( 0 2 1) ( 0 1 1)

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Crystal Structure:

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Kawada I , Hellner E , Neues Jahrbuch fur Mineralogie, Monatshefte , 1971 (1971) p.551-560, Die kristallstruktur der pseudozelle (sub cell) von andorit VI (ramdohrit)

Physical Properties of Andorite

Color:

Grayish yellow, Dark gray, Steel gray.

Optical Properties of Andorite

RL Color:

White.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Andorite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	39.20	42.30
420 nm	38.80	42.00
440 nm	38.40	41.70
460 nm	38.00	41.40
480 nm	37.50	41.10
500 nm	37.00	40.90
520 nm	36.70	40.60
540 nm	36.30	40.40
560 nm	36.00	40.00
580 nm	35.50	39.60
600 nm	35.20	39.00
620 nm	34.80	38.50
640 nm	34.50	38.00
660 nm	34.10	37.50
680 nm	33.70	37.00
700 nm	33.30	36.60

**Calculated Relative Intensity Colors of Andorite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	250%
R₁
R₂

Calculated Properties of Andorite

Electron Density:

Bulk Density (Electron Density)=4.71 gm/cc
note: Specific Gravity of Andorite =5.44 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_Andorite= 596.64 barns/electron
U=PE_Andorite x rElectron Density=2,811.66 barns/cc.

Radioactivity:

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

Andorite Classification

Dana Class:

03.04.15.04 (03)Sulfides - Sulfosalts

(03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.04.15)Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi)

03.04.15.01 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m

03.04.15.02 Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m

03.04.15.03 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m

03.04.15.04 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m

03.04.15.05 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m

03.04.15.06 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m

03.04.15.07 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m

03.04.15.08 Fizelyite Pb14Ag5Sb21S48(?) P 2₁/n 2/m

Strunz Class:

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

02.J - Sulfosalts of PbS Archetype

02.JB -Galena derivatives, with Pb

02.JB.40a Fizelyite Pb14Ag5Sb21S48(?) P 2₁/n 2/m

02.JB.40a Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m

02.JB.40a Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m

02.JB.40a Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m

02.JB.40a Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m

02.JB.40a Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m

02.JB.40a Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m

02.JB.40a Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m

02.JB.40a Xilingolite Pb3Bi2S6 C 2/m 2/m

02.JB.40a Treasurite Ag7Pb6Bi15S32 B2/m 2/m

02.JB.40a Vikingite Ag5Pb8Bi13S30 C 2/m 2/m

Other Andorite Information

See Also:

Links to other databases for Andorite :
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 - HyperPhysics
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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

Andorite

PbAgSb3S6
Dana No: 03.04.15.04 Strunz No: 02.JB.40a
Locality:

Notes: