General Hatchite Information Chemical Formula: |
(Pb,Tl)2AgAs2S5 |
Composition: |
Molecular Weight = 831.03 gm |
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Thallium 12.30 % Tl |
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Silver 12.98 % Ag |
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Arsenic 18.03 % As |
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Lead 37.40 % Pb |
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Sulfur 19.29 % S |
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100.00 % |
Empirical Formula: |
Pb1.5Tl0.5AgAs2S5 |
Environment: |
Of hydrothermal origin, in crystalline dolomite. |
IMA Status: |
Valid Species (Pre-IMA) 1912 |
Locality: |
From the Lengenbach quarry, Binntal, Valais, Switzerland. Link to MinDat.org Location Data. |
Name Origin: |
For Dr. Frederick Henry Hatch (1864-1932), American geologist and mining engineer. |
Name Pronunciation: |
Hatchite |
Synonym: |
ICSD 27304 |
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PDF 25-463 |
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Images:
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Hatchite Crystallography Axial Ratios: |
a:b:c =1.1951:1:1.028 |
Cell Dimensions: |
a = 9.37, b = 7.84, c = 8.06, Z = 2; alpha = 66.25°, beta = 63.2°, gamma = 84.58° V = 481.57 Den(Calc)= 5.73 |
Crystal System: |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 or P1 |
X Ray Diffraction: |
By Intensity(I/Io): 3.314(1), 2.863(0.9), 3.401(0.8),3.569(0.4), 4.28(0.3), 4.54(0.3), 3.75(0.2), |
Crystal Structure:
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Mouse
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| Physical Properties of Hatchite Color: |
Lead gray, Grayish black. |
Diaphaneity: |
Opaque to subtranslucent |
Habit: |
Euhedral Crystals - Occurs as well-formed crystals showing good external form. |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
Luster: |
Metallic |
Streak: |
dark brown |
| Optical Properties of Hatchite RL Color: |
Dark red in transmitted light. |
| Calculated Properties of Hatchite Electron Density: |
Bulk Density (Electron Density)=4.92 gm/cc |
note: Specific Gravity of Hatchite =5.74 gm/cc. Fermion Index: |
Fermion Index = 0.08 |
Boson Index = 0.92 Photoelectric: |
PEHatchite = 929.19 barns/electron |
U=PEHatchite x rElectron Density=4,576.00 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Hatchite is Not Radioactive | Hatchite Classification Dana Class: |
03.05.08.02 (03)Sulfides - Sulfosalts |
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(03.05)where 2.5 < z/y < 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.05.08)Dana Group |
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Strunz Class: |
02.GC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.G - Sulfarsenites, sulfantimonites, sulfbismuthites |
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02.GC -Poly-sulfarsenites |
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| Other Hatchite Information References: |
NAME( AntBidBlaNic1) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Hatchite : |
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 15 - WWW-MINCRYST Search for Hatchite using: Visit our Advertisers for Hatchite : A Bijoux Google Search for HatchiteAdam's Minerals Google Search for Hatchite Cape Minerals Google Search for Hatchite Dakota Matrix Minerals Google Search for Hatchite Excalibur Mineral Corp. Google Search for Hatchite Exceptional Minerals Google Search for Hatchite John Betts Fine Minerals Search for Hatchite McDougall Minerals Google Search for Hatchite Mineral News Website Link Rock and Mineral Shows Google Search for Hatchite Weinrich Minerals, Inc. Google Search for Hatchite Ask about Hatchite here : Print or Cut-and-Paste your Hatchite Specimen Label here :
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