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Tedhadleyite Mineral Data
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General Tedhadleyite Information
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 Chemical Formula: |
Hg++Hg+10O4I2(Cl1.16Br0.84)2 |
| Composition: |
Molecular Weight = 2,698.11 gm |
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Mercury 80.29 % Hg 75.76 % Hg2O / 8.03 % HgO |
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Iodine 10.35 % I 10.35 % I |
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- %
I -0.65 % -O=I2 |
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Bromine 2.96 % Br 2.96 % Br |
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- %
Br -0.30 % -O=Br2 |
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Chlorine 4.20 % Cl 4.20 % Cl |
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- %
Cl -0.95 % -O=Cl2 |
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Oxygen 2.19 % O |
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______ ______ |
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100.00 % 99.41 % = TOTAL OXIDE |
| Empirical Formula: |
HgHg9.8O3.7I2.22(Cl1.6)2(Br0.5) |
| Environment: |
Vug in a quartz-magnesite host rock at a prospect pit near the Clear Creek mercury mine. (new structure-type) |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Clear Creek claim, San Benito County, California, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Ted A. Hadley (1961-) of Sunnyvale, California, who participated in the collection of the holotype specimen. |
| Synonym: |
IMA2001-035 |
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Tedhadleyite Image |
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Images:
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Tedhadleyite
Comments: Grain of tedhadleyite between crossed polars, showing ubiquitous red internal reflections. (CanMin, v40:909).
Location: Small prospect pit near the long abandoned Clear Creek mercury mine, New Idria district, San Benito County, California, USA.
Scale: Grain Size 0.3 mm.
© Canadian Mineralogist |
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Tedhadleyite Crystallography
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| Axial Ratios: |
a:b:c =0.5916:1:1.0629 |
| Cell Dimensions: |
a = 7.014, b = 11.855, c = 12.601, Z = 2; alpha = 115.56°, beta = 82.57°, gamma = 100.57° V = 921.40 Den(Calc)= 9.72 |
| Crystal System: |
Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: A1 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.885(1)(113), 3.143(0.9)(131,222), 2.675(0.9),
3.005(0.7)(122), 2.981(0.5)(211), 5.281(0.5)(020,111), 2.508(0.4), 6.52(0.3), |
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Physical Properties of Tedhadleyite
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| Cleavage: |
{010} Poor |
| Color: |
Very dark red, Black. |
| Diaphaneity: |
Opaque to translucent |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Habit: |
Spherical - Spherical, rounded aggregates. |
| Hardness: |
2.5 - Finger Nail |
| Luster: |
Adamantine - Submetallic |
| Streak: |
red |
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Optical Properties of Tedhadleyite
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| Optical Data: |
NCalc= 2.57 - from Gladstone-Dale relationship (KC = 0.1622) where Ncalc=Dcalc*KC+1
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| RL Anisotrophism: |
Moderate. |
| RL Bireflectance: |
None. |
| RL Color: |
Bluish white. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tedhadleyite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
27.20 |
30.00 |
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| 546 nm |
24.40 |
27.60 |
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| 589 nm |
22.80 |
25.40 |
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| 650 nm |
21.60 |
23.90 |
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Calculated Relative Intensity Colors of Tedhadleyite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
320% |
360% |
390% |
| R1 |
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| R2 |
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Calculated Properties of Tedhadleyite
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| Electron Density: |
Bulk Density (Electron Density)=7.87 gm/cc
note: Specific Gravity of Tedhadleyite =9.66 gm/cc.
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| Fermion Index: |
Fermion Index = 0.24
Boson Index = 0.76 |
| Photoelectric: |
PETedhadleyite =1,440.22 barns/electron
U=PETedhadleyite x rElectron Density=11339.93 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tedhadleyite is Not Radioactive |
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Tedhadleyite Classification
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| Dana Class: |
10.05.14.01 (10)Oxyhalides and Hydroxyhalides |
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(10.05)where Am (O,OH)p Xq |
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(10.05.14)Dana Group |
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10.05.14.01 Tedhadleyite! HgHg10O4I2(Cl1.16Br0.84)2 A1 1 |
| Strunz Class: |
03.DD.40 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.40 Tedhadleyite! HgHg10O4I2(Cl1.16Br0.84)2 A1 1 |
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Other Tedhadleyite Information
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| References: |
NAME( AmMin, Vol 88, p 477) PHYS. PROP.(AmMin, Vol 88, p 477) OPTIC PROP.(AmMin, Vol 88, p 477) |
| See Also: |
Links to other databases for Tedhadleyite :
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 Tedhadleyite Specimen Label here :
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Tedhadleyite
Hg++Hg+10O4I2(Cl1.16Br0.84)2
Dana No: 10.05.14.01 Strunz No: 03.DD.40
Locality:
Notes:
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