Mineralogy Database

Hugelite Mineral Data

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General Hugelite Information

Help on Chemical  Formula: Chemical Formula: Pb2(UO2)3(AsO4)2(OH)4•3(H2O)
Help on Composition: Composition: Molecular Weight = 1,624.40 gm
   Uranium   43.96 %  U    49.87 % UO2
   Arsenic    9.22 %  As   14.15 % As2O5
   Hydrogen   0.62 %  H     5.55 % H2O
   Lead      25.51 %  Pb   27.48 % PbO
   Oxygen    20.68 %  O
            ______        ______ 
            100.00 %       97.05 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2(UO2)3(AsO4)2(OH)4•3(H2O)
Help on Environment: Environment: The As-dominant analogue of dumontite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1913
Help on Locality: Locality: Reichenbach, near Lahr, Baden-Wurttemberg, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for F. Hugel.
Help on Name Pronunciation: Name Pronunciation: Hugelite Say HUGELITE
Help on Synonym: Synonym: Huegelite
 

Hugelite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7954:1:0.407
Help on Cell Dimensions: Cell Dimensions: a = 31.066, b = 17.303, c = 7.043, Z = 8; beta = 96.492° V = 3,761.58 Den(Calc)= 5.74
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.73(1), 3.06(0.9), 1.833(0.7),2.89(0.7), 3(0.7), 2.16(0.6), 2.7(0.6), 4.33(0.6),
 

Physical Properties of Hugelite

Help on Color: Color: Brown, Orange yellow.
Help on Density: Density: 5.1
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Adamantine - Greasy
Help on Streak: Streak: pale yellow
 

Optical Properties of Hugelite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.387 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.232 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1579,KPDmeas= 0.1777,KC= 0.1282
Ncalc = 1.65 - 1.74
Help on Optical Data: Optical Data: Biaxial (+), a=1.898, g=1.915, bire=0.0170, 2V(Meas)=25. Dispersion r << v extreme.
Help on Pleochroism (x): Pleochroism (x): yellow or yellow.
Help on Pleochroism (y): Pleochroism (y): orange yellow or orange yellow.
Help on Pleochroism (z): Pleochroism (z): pale yellow or colorless.
 

Calculated Properties of Hugelite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.83 gm/cc
note: Specific Gravity of Hugelite =5.74 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEHugelite =1,656.39 barns/electron
U=PEHugelite x relectron=8,006.98 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,155,633.69 (Gamma Ray American Petroleum Institute Units)
Concentration of Hugelite per GRapi unit = 316.89 (PPB)

Hugelite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 9.64 ± 2.41 grams of pure Hugelite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 963.88 ±240.97 grams of pure Hugelite .

Estimated Radioactivity from Hugelite - very strong
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Bequerols
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 6.93 cm 78,688,611 2.13E-03 3,155,633.69 1,037.47
100 gm / 3.22 cm 7,868,861 2.13E-04 315,563.37 103.75
10 gm / 1.49 cm 786,886 2.13E-05 31,556.34 10.37
1 gm / 6.93 mm 78,689 2.13E-06 3,155.63 1.04
0.1 gm / 3.22 mm 7,869 2.13E-07 315.56 0.10
0.01 gm / 1.49 mm 787 2.13E-08 31.56 0.01
0.001 gm / 0.69 mm 79 2.13E-09 3.16 0.00

Weight of pure Hugelite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.74 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
 

Hugelite Classification

Help on  Dana Class: Dana Class: 42.04.05.02 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.04)where (AB)5 (XO4)2 Zq � x(H2O)
  (42.04.05)Dumontite Group
 
42.04.05.01 Dumontite Pb2(UO2)3O2(PO4)2•5(H2O) P 21/m 2/m
 
42.04.05.02 Hugelite Pb2(UO2)3(AsO4)2(OH)4•3(H2O) P 21/m 2/m
 
42.04.05.03 Bergenite Ca2Ba4[(UO3)2O2(PO4)2]3(H2O)16 P 21/c 2/m
Help on  Strunz Class: Strunz Class: 08.EC.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EC -UO2:RO4 = 3:2
 
08.EC.15 Dumontite Pb2(UO2)3O2(PO4)2•5(H2O) P 21/m 2/m
 
08.EC.15 Hugelite Pb2(UO2)3(AsO4)2(OH)4•3(H2O) P 21/m 2/m
 

Other Hugelite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8, AmMin, v 89, p 897) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Hugelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Uranium Minerals

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Print or Cut-and-Paste your Hugelite Specimen Label here :

Hugelite

Pb2(UO2)3(AsO4)2(OH)4•3(H2O)
Dana No: 42.04.05.02 Strunz No: 08.EC.15
Locality:

 

Notes:

 

 
   
 


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