General Samsonite Information
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Chemical Formula: |
Ag4MnSb2S6 |
Composition: |
Molecular Weight = 922.31 gm |
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Manganese 5.96 % Mn |
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Silver 46.78 % Ag |
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Antimony 26.40 % Sb |
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Sulfur 20.86 % S |
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______ |
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100.00 % |
Empirical Formula: |
Ag4Mn3+Sb2S6 |
IMA Status: |
Valid Species (Pre-IMA) 1910 |
Locality: |
Samson Vein of Andreasberg silver mines, Harz Mountains, Germany. Link to MinDat.org Location Data. |
Name Origin: |
Named after its location. |
Synonym: |
ICSD 38360 |
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PDF Nov-74 |
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Samsonite Image |
Images:
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Samsonite Crystallography
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Axial Ratios: |
a:b:c =1.2782:1:0.8211 |
Cell Dimensions: |
a = 10.29, b = 8.05, c = 6.61, Z = 2; beta = 92.79° V = 546.89 Den(Calc)= 5.60 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/n |
X Ray Diffraction: |
By Intensity(I/Io): 3.2(1), 3.01(0.9), 2.59(0.6), |
Forms:
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Crystal Structure:
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Edenharter A , Nowacki W , Zeitschrift fur Kristallographie , 140 (1974) p.87-99, Verfeinerung der kristallstruktur von samsonit (SbS3)2Ag2Ag2Mn, Locality: Andreasberg, Harz, Germany
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Physical Properties of Samsonite
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Cleavage: |
None |
Color: |
Black, Steel black. |
Density: |
5.51 |
Diaphaniety: |
Subtranslucent to Opaque |
Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Hardness: |
2.5 - Finger Nail |
Luster: |
Sub Metallic |
Streak: |
dark red |
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Calculated Properties of Samsonite
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Electron Density: |
relectron=4.99 gm/cc note: rSamsonite =5.60 gm/cc. |
Fermion Index |
Fermion Index = 0.00156 Boson Index = 0.99844 |
Photoelectric: |
PESamsonite = 209.61 barns/electron U=PESamsonite x relectron=1,046.15 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Samsonite is Not Radioactive |
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Samsonite Classification
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Dana Class: |
3.4.12.1 (3)Sulfides - Sulfosalts |
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(3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(3.4.12)Dana Group |
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3.4.12.1 Samsonite Ag4MnSb2S6 P 2/n 2/m |
Strunz Class: |
II/E.07-50 II - Sulfides and sulphosalts |
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II/E - Sulfosalts (S : As,Sb,Bi = x) Sulfosalts with predominant Silver, x = 6.0 - 1.6 |
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II/E.07 - Proustite - Samsonite series |
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II/E.07-10 Proustite Ag3AsS3 R 3c 3 2/m |
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II/E.07-20 Pyrargyrite Ag3SbS3 R 3c 3m |
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II/E.07-30 Xanthoconite Ag3AsS3 A2/a 2/m |
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II/E.07-40 Pyrostilpnite Ag3SbS3 P 21/c 2/m |
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II/E.07-50 Samsonite Ag4MnSb2S6 P 2/n 2/m |
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II/E.07-60 Quadratite! Ag(Cd,Pb)AsS3 I 4/amd 4/m 2/m 2/m |
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Other Samsonite Information
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References: |
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Samsonite :
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 - WWW-MINCRYST
13 -École des Mines de Paris
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Print or Cut-and-Paste your Samsonite Specimen Label here :
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Samsonite
Ag4MnSb2S6
Dana No: 3.4.12.1 Strunz No: II/E.07-50
Locality:
Notes:
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