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Hanawaltite Mineral Data
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General Hanawaltite Information
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 Chemical Formula: |
Hg+6Hg++[Cl,(OH)]2O3 |
| Composition: |
Molecular Weight = 1,513.81 gm |
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Mercury 92.75 % Hg 82.67 % Hg2O / 14.31 % HgO |
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Hydrogen 0.03 % H 0.30 % H2O |
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Chlorine 3.51 % Cl 3.51 % Cl |
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- %
Cl -0.79 % -O=Cl2 |
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Oxygen 3.70 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Hg6HgCl1.5(OH)0.5O3 |
| Environment: |
On a fracture surface in a brecciated silica-carbonate rock composed mainly of ferroan magnesite and quartz. |
| IMA Status: |
Approved IMA 1996 |
| Locality: |
Clear Creek claim, New Idria district, San Benito County, California, USA. Link to MinDat.org Location Data. |
| Name Origin: |
For Dr. J. Donald Hanawalt (1903-1987), a pioneer in the field of X-ray powder diffraction. |
| Name Pronunciation: |
Hanawaltite + Pronunciation  |
| Synonym: |
ICSD 40340 |
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IMA1994-036 |
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PDF 48-1869 |
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Hanawaltite Crystallography
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| Axial Ratios: |
a:b:c =0.8493:1:0.4646 |
| Cell Dimensions: |
a = 11.79, b = 13.881, c = 6.45, Z = 4; V = 1,055.59 Den(Calc)= 9.52 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbma |
| X Ray Diffraction: |
By Intensity(I/Io): 3.053(1), 5.25(0.8), 2.954(0.7), |
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Physical Properties of Hanawaltite
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| Cleavage: |
{001} Good |
| Color: |
Black, Dark brown black, Dark red brown. |
| Density: |
9.52 |
| Diaphaneity: |
Opaque to translucent |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Hardness: |
4 - Fluorite |
| Luster: |
Metallic |
| Streak: |
dark reddish black |
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Optical Properties of Hanawaltite
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| Optical Data: |
NCalc= 2.42 - from Gladstone-Dale relationship (KC = 0.1488) where Ncalc=Dcalc*KC+1
NCalc= 2.42 - from Gladstone-Dale relationship (KC = 0.1488) where Ncalc=Dmeas*KC+1
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| RL Anisotrophism: |
Bright metallic blue. |
| RL Bireflectance: |
Moderate to strong. |
| RL Color: |
Gray, may have red-orange internal reflections. |
| RL Pleochroism: |
Weak, bright bluish gray to grayish white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Hanawaltite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
26.20 |
37.60 |
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| 420 nm |
25.20 |
34.80 |
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| 440 nm |
24.20 |
32.50 |
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| 460 nm |
23.30 |
30.60 |
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| 480 nm |
22.40 |
29.00 |
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| 500 nm |
21.80 |
27.70 |
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| 520 nm |
21.20 |
26.70 |
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| 540 nm |
20.80 |
25.90 |
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| 560 nm |
20.50 |
25.20 |
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| 580 nm |
20.30 |
24.60 |
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| 600 nm |
20.10 |
24.10 |
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| 620 nm |
20.00 |
23.70 |
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| 640 nm |
20.20 |
23.30 |
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| 660 nm |
20.30 |
23.10 |
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| 680 nm |
20.20 |
22.90 |
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| 700 nm |
20.00 |
22.50 |
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Calculated Relative Intensity Colors of Hanawaltite in Air
Relative
Intensity |
0% |
50% |
100% |
150% |
200% |
250% |
300% |
350% |
400% |
430% |
| R1 |
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| R2 |
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Calculated Properties of Hanawaltite
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| Electron Density: |
Bulk Density (Electron Density)=7.72 gm/cc
note: Specific Gravity of Hanawaltite =9.52 gm/cc.
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| Fermion Index: |
Fermion Index = 0.28
Boson Index = 0.72 |
| Photoelectric: |
PEHanawaltite =1,618.69 barns/electron
U=PEHanawaltite x rElectron Density=12500.51 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hanawaltite is Not Radioactive |
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Hanawaltite Classification
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| Dana Class: |
10.05.13.01 (10)Oxyhalides and Hydroxyhalides |
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(10.05)where Am (O,OH)p Xq |
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(10.05.13)Dana Group |
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10.05.13.01 Hanawaltite Hg6Hg[Cl,(OH)]2O3 Pbma 2/m 2/m 2/m |
| Strunz Class: |
03.DD.15 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.15 Hanawaltite Hg6Hg[Cl,(OH)]2O3 Pbma 2/m 2/m 2/m |
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Other Hanawaltite Information
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| References: |
NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,p1282,1996) OPTIC PROP.(AntBidBlaNic3) |
| See Also: |
Links to other databases for Hanawaltite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Hanawaltite Specimen Label here :
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Hanawaltite
Hg+6Hg++[Cl,(OH)]2O3
Dana No: 10.05.13.01 Strunz No: 03.DD.15
Locality:
Notes:
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