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Vasilyevite Mineral Data
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General Vasilyevite Information
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Chemical Formula: |
(Hg2)++10O6I3Cl(CO3) |
Composition: |
Molecular Weight = 4,836.00 gm |
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Mercury 86.36 % Hg 89.80 % Hg2O |
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Carbon 0.22 % C 0.81 % CO2 |
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Sulfur 0.10 % S 0.10 % S2- |
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- % S -0.05 % -O=S |
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Iodine 7.06 % I 7.06 % I |
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- %
I -0.44 % -O=I2 |
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Bromine 2.51 % Br 2.51 % Br |
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- %
Br -0.25 % -O=Br2 |
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Chlorine 0.60 % Cl 0.60 % Cl |
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- %
Cl -0.14 % -O=Cl2 |
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Oxygen 3.15 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Hg20.82O6.85I2.69Br1.52Cl0.82(CO3)0.89S0.15 |
Environment: |
Occurs in milligram grains in quartz-lined vugs in small quartz veins cutting brecciated silicate-carbonate rock. |
IMA Status: |
Approved IMA 2003 (Dana # Added) |
Locality: |
Clear Creek claim, San Benitio County, California, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for Vladimir Ivanovich Vasilyev (1929-), Institute of of Geology of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia. |
Synonym: |
IMA2003-016 |
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Vasilyevite Crystallography
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Axial Ratios: |
a:b:c =0.8771:1:1.7145 |
Cell Dimensions: |
a = 9.344, b = 10.653, c = 18.265, Z = 2; alpha = 93.262°, beta = 90.548°, gamma = 115.422° V = 1,639.34 Den(Calc)= 9.80 |
Crystal System: |
Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1 |
X Ray Diffraction: |
By Intensity(I/Io): 2.894(1)(312,322), 3.132(0.9)(123,113), 2.722(0.8)(124),
4.205(0.8)(014), 7.645(0.6)(111), 2.629(0.5)(130,140), |
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Physical Properties of Vasilyevite
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Cleavage: |
None |
Color: |
Silvery gray, Black, Dark reddish black. |
Diaphaneity: |
Translucent to opaque |
Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
Hardness: |
3 - Calcite |
Luster: |
Subadamantine |
Streak: |
red brown |
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Optical Properties of Vasilyevite
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Optical Data: |
NCalc= 2.51 - from Gladstone-Dale relationship (KC = 0.1544) where Ncalc=Dcalc*KC+1 |
RL Anisotrophism: |
Moderate to strong. |
RL Bireflectance: |
None. |
RL Color: |
Gray with abundant orange-red to blood red internal reflections. |
RL Pleochroism: |
None. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Vasilyevite in Air
λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
400 nm |
30.20 |
30.80 |
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420 nm |
29.90 |
30.60 |
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440 nm |
29.50 |
30.40 |
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460 nm |
28.90 |
29.80 |
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470 nm |
28.60 |
29.50 |
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480 nm |
28.20 |
29.20 |
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500 nm |
27.60 |
28.70 |
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520 nm |
27.00 |
27.80 |
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540 nm |
26.40 |
27.30 |
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546 nm |
26.20 |
27.10 |
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560 nm |
25.70 |
26.60 |
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580 nm |
24.90 |
25.90 |
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589 nm |
24.60 |
25.70 |
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600 nm |
24.30 |
25.30 |
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620 nm |
23.60 |
24.80 |
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640 nm |
23.00 |
24.10 |
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650 nm |
22.80 |
24.00 |
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660 nm |
22.60 |
23.60 |
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680 nm |
22.20 |
23.10 |
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700 nm |
21.90 |
22.90 |
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Standardized Intensity (100%) Reflection Spectra of Vasilyevite in Oil
λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
400 nm |
14.60 |
15.30 |
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420 nm |
14.00 |
14.80 |
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440 nm |
13.50 |
14.40 |
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460 nm |
13.20 |
14.10 |
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470 nm |
13.00 |
13.90 |
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480 nm |
12.70 |
13.60 |
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500 nm |
12.30 |
13.10 |
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520 nm |
11.80 |
12.50 |
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540 nm |
11.30 |
12.10 |
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546 nm |
11.10 |
11.80 |
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560 nm |
10.70 |
11.50 |
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580 nm |
10.40 |
11.10 |
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589 nm |
10.20 |
10.90 |
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600 nm |
10.00 |
10.70 |
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620 nm |
9.70 |
10.40 |
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640 nm |
9.20 |
10.00 |
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650 nm |
9.10 |
9.80 |
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660 nm |
9.00 |
9.60 |
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680 nm |
8.70 |
9.30 |
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700 nm |
8.60 |
9.20 |
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Calculated Relative Intensity Colors of Vasilyevite in Air
Relative Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
320% |
360% |
R1 |
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R2 |
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Calculated Relative Intensity Colors of Vasilyevite in Oil
Relative Intensity |
0% |
90% |
100% |
180% |
270% |
360% |
450% |
540% |
630% |
720% |
810% |
870% |
R1 |
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R2 |
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Calculated Properties of Vasilyevite
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Electron Density: |
Bulk Density (Electron Density)=7.94 gm/cc note: Specific Gravity of Vasilyevite =9.80 gm/cc. |
Fermion Index: |
Fermion Index = 0.26 Boson Index = 0.74 |
Photoelectric: |
PEVasilyevite =1,540.39 barns/electron U=PEVasilyevite x rElectron Density=12231.53 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Vasilyevite is Not Radioactive |
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Vasilyevite Classification
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Dana Class: |
10.05.15.01 (10)Oxyhalides and Hydroxyhalides |
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(10.05)where Am (O,OH)p Xq |
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(10.05.15)Dana Group |
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10.05.15.01 Vasilyevite! (Hg2)10O6I3Cl(CO3) P1 1 |
Strunz Class: |
03.DD.45 03 - HALIDES |
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03.D - Oxyhalides, Hydroxyhalides and Related Double Halides |
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03.DD -With Hg |
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03.DD.45 Vasilyevite! (Hg2)10O6I3Cl(CO3) P1 1 |
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Other Vasilyevite Information
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References: |
NAME( CanMin, v 41, p 1167) PHYS. PROP.(CanMin, v 41, p 1167) OPTIC PROP.(CanMin, v 41, p 1167) |
See Also: |
Links to other databases for Vasilyevite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Vasilyevite Specimen Label here :
Vasilyevite
(Hg2)++10O6I3Cl(CO3)
Dana No: 10.05.15.01 Strunz No: 03.DD.45
Locality:
Notes:
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