Borodaevite Mineral Data

General Borodaevite Information

Chemical Formula:

Ag5(Bi,Sb)9S16

Composition:

Molecular Weight = 2,736.95 gm

Silver 19.71 % Ag

Bismuth 51.54 % Bi

Antimony 10.01 % Sb

Sulfur 18.75 % S

______

100.00 %

Empirical Formula:

Ag₅Bi_6.75Sb_2.25S₁₆

IMA Status:

Approved IMA 1992

Locality:

Alaskitivoje, near Ust-Nera, Yakutia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named in 1992 for its similarity to pavonite.

Name Pronunciation:

Borodaevite + Pronunciation

Synonym:

IMA1991-037

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Borodaevite Crystallography

Axial Ratios:

a:b:c =3.2979:1:6.3445

Cell Dimensions:

a = 13.515, b = 4.098, c = 26, Z = 2; beta = 93° V = 1,438.02 Den(Calc)= 6.32

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 2.82(1), 3.24(0.9), 3.37(0.9),

Physical Properties of Borodaevite

Color:

Gray.

Density:

7.9

Diaphaneity:

Opaque

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Calculated Properties of Borodaevite

Electron Density:

Bulk Density (Electron Density)=5.38 gm/cc
note: Specific Gravity of Borodaevite =6.32 gm/cc.

Fermion Index:

Fermion Index = 0.0014064296
Boson Index = 0.9985935704

Photoelectric:

PE_Borodaevite=1,061.86 barns/electron
U=PE_Borodaevite x rElectron Density=5,718.00 barns/cc.

Radioactivity:

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

Borodaevite Classification

Dana Class:

03.08.10.05 (03)Sulfides - Sulfosalts

(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.08.10)Pavonite Group (Monoclinic: C/2c bismuth sulfosalts)

03.08.10.01 Pavonite (Ag,Cu)(Bi,Pb)3S5 C 2/c 2/m

03.08.10.02 Makovickyite Ag1.5Bi5.5S9 C 2/c 2/m

03.08.10.03 Benjaminite (Ag,Cu)3(Bi,Pb)7S12 C 2/c 2/m

03.08.10.04 Mummeite Cu0.58Ag3.11Pb1.10Bi6.65S13 C 2/c 2/m

03.08.10.05 Borodaevite Ag5(Bi,Sb)9S16 C 2/c 2/m

03.08.10.06 Cupropavonite AgPbCu2Bi5S10 C 2/c 2/m

03.08.10.07 Cupromakovickyite! Cu4AgPb2Bi9S18 C 2/m 2/m

03.08.10.08 Kudriavite! (Cd,Pb)Bi2S4 C 2/m 2/m

03.08.10.09 IMA2008-058! Ag5Bi13S22 C 2/m 2/m

03.08.10.10 IMA2005-036! Cu8Pb4Ag3Bi19S38 C 2/m 2/m

Strunz Class:

02.JA.05g 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.J - Sulfosalts of PbS Archetype

02.JA -Galena derivatives with little or no Pb

02.JA.05g Borodaevite Ag5(Bi,Sb)9S16 C 2/c 2/m

Other Borodaevite Information

References:

NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)

See Also:

Links to other databases for Borodaevite :
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

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

Borodaevite

Ag5(Bi,Sb)9S16
Dana No: 03.08.10.05 Strunz No: 02.JA.05g
Locality:

Notes: