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Terlinguacreekite Mineral Data
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General Terlinguacreekite Information
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 Chemical Formula: |
Hg++3O2Cl2 |
| Composition: |
Molecular Weight = 709.92 gm |
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Mercury 84.77 % Hg 91.53 % HgO |
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Bromine 1.24 % Br 1.24 % Br |
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- %
Br -0.12 % -O=Br2 |
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Chlorine 9.49 % Cl 9.49 % Cl |
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- %
Cl -2.14 % -O=Cl2 |
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Oxygen 4.51 % O |
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______ ______ |
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100.00 % 99.99 % = TOTAL OXIDE |
| Empirical Formula: |
Hg3O2Cl1.9Br0.11 |
| Environment: |
Oxyhalide with Hg |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Perry Pit, Mariposa mine, Terlingua mining district, Brewster County, Texas, USA Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Terlinguacreekite + Pronunciation  |
| Synonym: |
IMA2004-018 |
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Terlinguacreekite Image |
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Images:
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Terlinguacreekite Crystallography
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| Axial Ratios: |
a:b:c =0.2639:1:0.2167 |
| Cell Dimensions: |
a = 6.737, b = 25.528, c = 5.533, Z = 8; V = 951.58 Den(Calc)= 9.91 |
| Crystal System: |
Orthorhombic Space Group: Imam, Imcm, Ima2, or I2cm |
| X Ray Diffraction: |
By Intensity(I/Io): 2.518(1)(091,251), 4.063(0.8)(121 ), 2.983(0.6)(240 ),2.765(0.5)(002 ), 3.023(0.5)(161 ), 3.201(0.5)(080 ), 2.026(0.3)(242 ), 5.413(0.3)(011 ), 2.858(0.3)(211 ), |
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Physical Properties of Terlinguacreekite
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| Cleavage: |
None |
| Color: |
Dark orange, Reddish orange. |
| Diaphaneity: |
Transparent |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
| Hardness: |
2-3 - Gypsum-Calcite |
| Luster: |
Vitreous (Glassy) |
| Streak: |
yellow |
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Optical Properties of Terlinguacreekite
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| Optical Data: |
NCalc= 2.44 - from Gladstone-Dale relationship (KC = 0.1452) where Ncalc=Dcalc*KC+1
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| RL Anisotrophism: |
Shown, with yellowish orange internal reflections. |
| RL Bireflectance: |
Weakly. |
| RL Color: |
Bluish gray. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Terlinguacreekite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
15.40 |
16.50 |
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| 546 nm |
14.50 |
15.60 |
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| 589 nm |
14.30 |
15.40 |
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| 650 nm |
14.20 |
15.20 |
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Calculated Relative Intensity Colors of Terlinguacreekite in Air
Relative
Intensity |
0% |
70% |
100% |
140% |
210% |
280% |
350% |
420% |
490% |
560% |
620% |
| R1 |
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| R2 |
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Calculated Properties of Terlinguacreekite
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| Electron Density: |
Bulk Density (Electron Density)=8.16 gm/cc
note: Specific Gravity of Terlinguacreekite =9.91 gm/cc.
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| Fermion Index: |
Fermion Index = 0.25
Boson Index = 0.75 |
| Photoelectric: |
PETerlinguacreekite =1,459.66 barns/electron
U=PETerlinguacreekite x rElectron Density=11905.68 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Terlinguacreekite is Not Radioactive |
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Terlinguacreekite Classification
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| Dana Class: |
10.03.07.01 (10)Oxyhalides and Hydroxyhalides |
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(10.03)where (A)3 (O,OH)2 Xq |
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(10.03.07)Dana Group |
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10.03.07.01 Terlinguacreekite! Hg3O2Cl2 Imam, Imcm, Ima2, or I2cm Ortho |
| Strunz Class: |
03.DD.55 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.55 Terlinguacreekite! Hg3O2Cl2 Imam, Imcm, Ima2, or I2cm Ortho |
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Other Terlinguacreekite Information
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| References: |
NAME( AmMin, v91, p219) PHYS. PROP.(AmMin, v91, p219) OPTIC PROP.(AmMin, v91, p219) |
| See Also: |
Links to other databases for Terlinguacreekite :
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 Terlinguacreekite Specimen Label here :
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Terlinguacreekite
Hg++3O2Cl2
Dana No: 10.03.07.01 Strunz No: 03.DD.55
Locality:
Notes:
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