General Hutchinsonite Information
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Chemical Formula: |
(Pb,Tl)2As5S9 |
Composition: |
Molecular Weight = 1,074.79 gm |
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Thallium 19.02 % Tl |
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Arsenic 34.85 % As |
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Lead 19.28 % Pb |
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Sulfur 26.85 % S |
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______ |
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100.00 % |
Empirical Formula: |
PbTlAs5S9 |
Environment: |
Hydrothermal origin. |
IMA Status: |
Valid Species (Pre-IMA) 1904 |
Locality: |
Binnental, Valais, Switzerland. Link to MinDat.org Location Data. |
Name Origin: |
Named for Arthur Hitchinson (1866-1937), Professor of Mineralogy, Cambridge University, England. |
Synonym: |
ICSD 74765 |
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PDF 42-1388 |
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Hutchinsonite Image |
Images:
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Images:
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Hutchinsonite
Comments: Aggregate of red colored needles of hutchinsonite on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland.
Scale: Picture width 6 mm.
© Walter Gabriel |
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Images:
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Hutchinsonite
Comments: Transparent, striated, cherry-red crystal of hutchinsonite on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland.
Scale: Crystal size 1 mm.
© Walter Gabriel |
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Hutchinsonite Crystallography
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Axial Ratios: |
a:b:c =0.3055:1:0.2307 |
Cell Dimensions: |
a = 10.78, b = 35.28, c = 8.14, Z = 8; V = 3,095.79 Den(Calc)= 4.61 |
Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P bca |
X Ray Diffraction: |
By Intensity(I/Io): 2.74(1), 3.78(0.7), 3.05(0.6), |
Forms:
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Forms:
[ 0 3 1]
[ 4 5 0]
[ 0 1 0]
[ 0 2 1]
[ 2 1 0]
[ 4 3 0]
[ 0 1 1]
[ 1 1 0]
[ 4 1 0]
[ 1 0 0]
[ 2 3 2]
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Crystal Structure:
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Takeuchi Y , Ghose S , Nowacki W , Zeitschrift fur Kristallographie , 121 (1965) p.321-348, The crystal structure of hutchinsonite, (Tl,Pb)2As5S9, Locality: Lengenbach, Binnatal, Valais, Switzerland
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Physical Properties of Hutchinsonite
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Cleavage: |
[100] Good |
Color: |
Cherry red, Pink, Black. |
Density: |
4.6 |
Diaphaniety: |
Subtranslucent to opaque |
Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Habit: |
Acicular - Occurs as needle-like crystals. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Hardness: |
1.5-2 - Talc-Gypsum |
Luster: |
Sub Metallic |
Streak: |
red |
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Optical Properties of Hutchinsonite
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Optical Data: |
Biaxial (-), a=3.078, b=3.176, g=3.188, bire=0.1100, 2V(Calc)=36, 2V(Meas)=37.4. Dispersion marked to extreme, r < v. |
RL Anisotrophism: |
Strong. |
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Calculated Properties of Hutchinsonite
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Electron Density: |
relectron=4.05 gm/cc note: rHutchinsonite =4.61 gm/cc. |
Fermion Index |
Fermion Index = 0.04461 Boson Index = 0.95539 |
Photoelectric: |
PEHutchinsonite = 682.62 barns/electron U=PEHutchinsonite x relectron=2,763.93 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hutchinsonite is Not Radioactive |
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Hutchinsonite Classification
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Dana Class: |
3.8.6.1 (3)Sulfides - Sulfosalts |
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(3.8)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(3.8.6)Dana Group |
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3.8.6.1 Hutchinsonite (Pb,Tl)2As5S9 P bca 2/m 2/m 2/m |
Strunz Class: |
II/E.13-45 II - Sulfides and sulphosalts |
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II/E - Sulfosalts (S : As,Sb,Bi = x) Sulfosalts with predominant Thallium and Mercury, x = 4.0 - 1.6 |
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II/E.13 - Livingstonite - Vaughanite series |
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II/E.13-10 Livingstonite HgSb4S8 A2/a 2/m |
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II/E.13-20 Grumiplucite! HgBi2S4 C 2/m 2/m |
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II/E.13-30 Simonite TlHgAs3S6 P 21/n 2/m |
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II/E.13-40 Vrbaite Tl4Hg3Sb2As8S20 C mca 2/m 2/m 2/m |
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II/E.13-42 Edenharterite TlPbAs3S6 F dd2 mm2 |
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II/E.13-43 Jentschite! TlPbAs2SbS6 P 21/n 2/m |
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II/E.13-45 Hutchinsonite (Pb,Tl)2As5S9 P bca 2/m 2/m 2/m |
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II/E.13-50 Lorandite TlAsS2 P 21/a 2/m |
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II/E.13-60 Weissbergite TlSbS2 P1 1 |
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II/E.13-70 Tvalchrelidzeite Hg12(Sb,As)8S15 P1 1 |
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II/E.13-80 Vaughanite TlHgSb4S7 P1 ? 1 |
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Other Hutchinsonite Information
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References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Hutchinsonite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - EUROmin Project
4 -Google Images
5 -Google Scholar
6 -Handbook of Mineralogy (UofA)
7 - HyperPhysics
8 -MinDAT
9 -MinMax(Deutsch)
10 -MinMax(English)
11 -Mineralienatlas (Deutsch)
12 -QUT Mineral Atlas
13 - WWW-MINCRYST
14 -École des Mines de Paris
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Print or Cut-and-Paste your Hutchinsonite Specimen Label here :
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Hutchinsonite
(Pb,Tl)2As5S9
Dana No: 3.8.6.1 Strunz No: II/E.13-45
Locality:
Notes:
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