| |
 |
Vikingite Mineral Data
|
|
|
General Vikingite Information
|
 Chemical Formula: |
Ag5Pb8Bi13S30 |
| Composition: |
Molecular Weight = 5,875.67 gm |
| |
Silver 9.18 % Ag |
| |
Bismuth 46.24 % Bi |
| |
Lead 28.21 % Pb |
| |
Sulfur 16.37 % S |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
Ag5Pb8Bi13S30 |
| Environment: |
Associated with cosalite and as lamellae in galena in the gustavite-galena paragenesis. |
| IMA Status: |
Approved IMA 1977 |
| Locality: |
Ivigtut, Greenland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the Vikings, who settled Greenland in the tenth century. |
| Name Pronunciation: |
Vikingite + Pronunciation  |
| Synonym: |
ICSD 72805 |
| |
PDF 43-690 |
| |
Vikingite Image |
|
Images:
|
|
Vikingite Crystallography
|
| Axial Ratios: |
a:b:c =0.5387:1:0.1628 |
| Cell Dimensions: |
a = 13.603, b = 25.248, c = 4.112, Z = 1; beta = 95.55° V = 1,405.64 Den(Calc)= 6.94 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.4(1), 1.75(0.9), 2.06(0.8), |
| |
Physical Properties of Vikingite
|
| Color: |
Gray. |
| Diaphaneity: |
Opaque |
| Habit: |
Lamellar - Thin laminae producing a lamellar structure. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Habit: |
Twinning Common - Crystals are usually twinned. |
| Hardness: |
3.5 - Copper Penny |
| Luster: |
Metallic |
| |
Optical Properties of Vikingite
|
| RL Anisotrophism: |
Distinct to strong, in light gray to steel bluish black. |
| RL Color: |
Galena-white. |
| RL Pleochroism: |
Absent in air, absent to weak in oil. |
| |
Calculated Properties of Vikingite
|
| Electron Density: |
Bulk Density (Electron Density)=5.79 gm/cc
note: Specific Gravity of Vikingite =6.94 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.06
Boson Index = 0.94 |
| Photoelectric: |
PEVikingite =1,437.66 barns/electron
U=PEVikingite x rElectron Density=8,320.60 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vikingite is Not Radioactive |
| |
Vikingite Classification
|
| Dana Class: |
03.06.11.01 (03)Sulfides - Sulfosalts |
| |
(03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
| |
(03.06.11)Dana Group |
| |
03.06.11.01 Vikingite Ag5Pb8Bi13S30 C 2/m 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 Vikingite Information
|
| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Vikingite :
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 Vikingite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Vikingite :
Ask about Vikingite 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
Espaņol
Print or Cut-and-Paste your Vikingite Specimen Label here :
|
Vikingite
Ag5Pb8Bi13S30
Dana No: 03.06.11.01 Strunz No: 02.JB.40a
Locality:
Notes:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.
