Lavrentievite Mineral Data + 
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- 10.3.4.1 Lavrentievite Hg3S2(Cl,Br)2 P 2/m,P 2,Pm Mono
- 10.3.4.2 Arzakite Hg3S2(Br,Cl)2 P 2/m,P 2,Pm Mono
- II/F.14-05 Kenhsuite! Hg3S2Cl2 A2mm mm2
- II/F.14-10 Corderoite Hg3S2Cl2 I 213 2 3
- II/F.14-20 Grechishchevite Hg3S2(Br,Cl,I)2 P 42m-,P 4m2,P 4mm,P 4/mmm Tetra
- II/F.14-30 Radtkeite Hg3S2ClI C 2/m 2/m
- II/F.14-40 Lavrentievite Hg3S2(Cl,Br)2 P 2/m,P 2,Pm Mono
- II/F.14-50 Arzakite Hg3S2(Br,Cl)2 P 2/m,P 2,Pm Mono
General Lavrentievite Information |
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 Chemical Formula: |
Hg3S2(Cl,Br)2 | ||
| Composition: |
Molecular Weight = 759.03 gm | ||
| Mercury 79.28 % Hg 82.44 % Hg2O | |||
| Sulfur 8.45 % S 8.45 % S2- | |||
| - % S -4.22 % -O=S | |||
| Bromine 5.26 % Br 5.26 % Br | |||
| - % Br -0.53 % -O=Br2 | |||
| Chlorine 7.01 % Cl 7.01 % Cl | |||
| - % Cl -1.58 % -O=Cl2 | |||
| ______ ______ | |||
| 100.00 % 96.84 % = TOTAL OXIDE | |||
| Empirical Formula: |
Hg3S2Cl1.5Br0.5 | ||
| Environment: |
In the oxidized zone of a hydrothermal deposit. | ||
| IMA Status: |
Approved IMA 1984 | ||
| Locality: |
Arzak mercury deposits, Tuva, Siberia, Russia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Michail Alexeevich Lavrentiev (1900-1980), Russian mathematician and academician, founder of the Siberian Academy of Science. | ||
Search for Lavrentievite Images | |||
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Images:
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Lavrentievite Crystallography |
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| Axial Ratios: |
a:b:c =1.7212:1:3.529 | ||
| Cell Dimensions: |
a = 8.94, b = 5.194, c = 18.33, Z = 5; beta = 92.73° V = 850.18 Den(Calc)= 7.41 | ||
| Crystal System: |
MonoclinicSpace Group: P 2/m,P 2,Pm | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.61(1), 3.01(0.6), 1.587(0.5),3.38(0.5), 2.2(0.4), 2.29(0.4), 3.96(0.4), 5(0.3), | ||
Physical Properties of Lavrentievite |
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| Color: |
Grayish black, Light yellow. | ||
| Diaphaniety: |
Transparent | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Hardness: |
2-2.5 - Gypsum-Finger Nail | ||
| Luster: |
Vitreous - Adamantine | ||
Optical Properties of Lavrentievite |
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| Optical Data: |
Biaxial (?) | ||
| NCalc= 2.13 - from Gladstone-Dale relationship (KC = 0.1523) where Ncalc=Dcalc*KC+1 |
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Calculated Properties of Lavrentievite |
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| Electron Density: |
relectron=6.15 gm/cc |
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| Fermion Index |
Fermion Index = 0.24006 Boson Index = 0.75994 |
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| Photoelectric: |
PELavrentievite =1,358.08 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Lavrentievite is Not Radioactive |
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Lavrentievite Classification |
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| Dana Class: |
10.3.4.1 (10)Oxyhalides and Hydroxyhalides | ||
| (10.3)where (A)3 (O,OH)2 Xq | |||
| (10.3.4)Dana Group | |||
| Strunz Class: |
II/F.14-40 II - Sulfides and sulphosalts | ||
| II/F - Sulfides with nonmetallic properties, Halogensulfides (Sulfohalides) with Mercury/Lead and related compounds | |||
| II/F.14 - Corderoite - Arzakite series | |||
Other Lavrentievite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Lavrentievite : 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 -École des Mines de Paris Search for Lavrentievite using: Visit our Advertisers for Lavrentievite : Translate Lavrentievite Mineral Data : Ask about Lavrentievite here : Print or Cut-and-Paste your Lavrentievite Specimen Label here :
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