Mineralogy Database

Hanawaltite Mineral Data

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General Hanawaltite Information

Help on Chemical  Formula: Chemical Formula: Hg+6Hg++[Cl,(OH)]2O3
Help on Composition: Composition: Molecular Weight = 1,513.81 gm
   Mercury   92.75 %  Hg   82.67 % Hg2O / 14.31 % HgO
   Hydrogen   0.03 %  H     0.30 % H2O
   Chlorine   3.51 %  Cl    3.51 % Cl
               -   %   Cl   -0.79 % -O=Cl2   
   Oxygen     3.70 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Hg6HgCl1.5(OH)0.5O3
Help on Environment: Environment: On a fracture surface in a brecciated silica-carbonate rock composed mainly of ferroan magnesite and quartz.
Help on IMA Status: IMA Status: Approved IMA 1996
Help on Locality: Locality: Clear Creek claim, New Idria district, San Benito County, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Dr. J. Donald Hanawalt (1903-1987), a pioneer in the field of X-ray powder diffraction.
Help on Name Pronunciation: Name Pronunciation: Hanawaltite + Pronunciation Say HANAWALTITE
Help on Synonym: Synonym: ICSD 40340
  IMA1994-036
  PDF 48-1869
 

Hanawaltite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8493:1:0.4646
Help on Cell Dimensions: Cell Dimensions: a = 11.79, b = 13.881, c = 6.45, Z = 4; V = 1,055.59 Den(Calc)= 9.52
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.053(1), 5.25(0.8), 2.954(0.7),
 

Physical Properties of Hanawaltite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Black, Dark brown black, Dark red brown.
Help on Density: Density: 9.52
Help on Diaphaneity: Diaphaneity: Opaque to translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Metallic
Help on Streak: Streak: dark reddish black
 

Optical Properties of Hanawaltite

Help on Optical Data: 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
Help on RL Anisotrophism: RL Anisotrophism: Bright metallic blue.
Help on RL Bireflectance: RL Bireflectance: Moderate to strong.
Help on RL Color: RL Color: Gray, may have red-orange internal reflections.
Help on RL Pleochroism: RL Pleochroism: Weak, bright bluish gray to grayish white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Hanawaltite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   26.20   37.60 
   
 420 nm   25.20   34.80 
 440 nm   24.20   32.50 
 460 nm   23.30   30.60 
 480 nm   22.40   29.00 
 500 nm   21.80   27.70 
 520 nm   21.20   26.70 
 540 nm   20.80   25.90 
 560 nm   20.50   25.20 
 580 nm   20.30   24.60 
 600 nm   20.10   24.10 
 620 nm   20.00   23.70 
 640 nm   20.20   23.30 
 660 nm   20.30   23.10 
 680 nm   20.20   22.90 
 700 nm   20.00   22.50 
Calculated Relative Intensity Colors of Hanawaltite in Air
Relative
Intensity
   0%   50% 100% 150% 200% 250% 300% 350% 400% 430%
R1                    
R2                    
 

Calculated Properties of Hanawaltite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.72 gm/cc
note: Specific Gravity of Hanawaltite =9.52 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.28
Boson Index = 0.72
Help on Photoelectric: Photoelectric: PEHanawaltite =1,618.69 barns/electron
U=PEHanawaltite x rElectron Density=12500.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hanawaltite is Not Radioactive
 

Hanawaltite Classification

Help on  Dana Class: Dana Class: 10.05.13.01 (10)Oxyhalides and Hydroxyhalides
  (10.05)where Am (O,OH)p Xq
  (10.05.13)Dana Group
 
10.05.13.01 Hanawaltite Hg6Hg[Cl,(OH)]2O3 Pbma 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 03.DD.15 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DD -With Hg
 
03.DD.15 Hanawaltite Hg6Hg[Cl,(OH)]2O3 Pbma 2/m 2/m 2/m
 

Other Hanawaltite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,p1282,1996) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: 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 :

Hanawaltite

Hg+6Hg++[Cl,(OH)]2O3
Dana No: 10.05.13.01 Strunz No: 03.DD.15
Locality:

 

Notes:

 

 
   
 


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