Mineralogy Database

Zellerite Mineral Data

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General Zellerite Information

Help on Chemical  Formula: Chemical Formula: Ca(UO2)(CO3)2•5(H2O)
Help on Composition: Composition: Molecular Weight = 520.20 gm
   Calcium    7.70 %  Ca   10.78 % CaO
   Uranium   45.76 %  U    51.91 % UO2
   Hydrogen   1.94 %  H    17.32 % H2O
   Carbon     4.62 %  C    16.92 % CO2
   Oxygen    39.98 %  O
            ______        ______ 
            100.00 %       96.92 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca(UO2)(CO3)2•5(H2O)
Help on Environment: Environment: Sediment-hosted uranium deposits.
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: Lucky Mc mine, Freemont County, and Pat No. 8 mine, Powder River Basin, Wyoming. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Howard D. Zeller (1922-), U. S. Geological Survey, who found the mineral.
Help on Name Pronunciation: Name Pronunciation: Zellerite + Pronunciation Say ZELLERITE
 

Zellerite Image

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  Zellerite

Comments: Yellowish zellerite aggregates on matrix.
Location: Jáchymov, Krusné Hory (Erzgebirge), Západoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Zellerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5827:1:0.2562
Help on Cell Dimensions: Cell Dimensions: a = 11.22, b = 19.252, c = 4.933, Z = 4; V = 1,065.56 Den(Calc)= 3.24
Help on Crystal System: Crystal System: Orthorhombic Space Group: Pbnm,Pbn21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.66(1), 4.85(0.5), 5.59(0.35),
 

Physical Properties of Zellerite

Help on Cleavage: Cleavage: None
Help on Color: Color: White yellow, Lemon.
Help on Density: Density: 3.25
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luminescence: Luminescence: Weakly Fluorescent, Short UV=weak mottled green, Long UV=weak mottled green.
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white
 

Optical Properties of Zellerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.087 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.09 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1844,KPDmeas= 0.1838,KC= 0.1691
Ncalc = 1.55
Help on Optical Data: Optical Data: Biaxial (+), a=1.536, b=1.559, g=1.697, bire=0.1610, 2V(Calc)=48, 2V(Meas)=30-45. Dispersion r > v.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): light yellow.
 

Calculated Properties of Zellerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Zellerite =3.25 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0041013101
Boson Index = 0.9958986899
Help on Photoelectric: Photoelectric: PEZellerite =1,135.67 barns/electron
U=PEZellerite x relectron=3,377.32 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,568,854.57 (Gamma Ray American Petroleum Institute Units)
Concentration of Zellerite per GRapi unit = 280.20 (PPB)

Zellerite 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) 8.52 ± 2.13 grams of pure Zellerite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 852.28 ±213.07 grams of pure Zellerite .

Estimated Radioactivity from Zellerite - 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 / 8.38 cm 81,905,291 2.21E-03 3,568,854.57 1,173.32
100 gm / 3.89 cm 8,190,529 2.21E-04 356,885.46 117.33
10 gm / 1.80 cm 819,053 2.21E-05 35,688.55 11.73
1 gm / 8.38 mm 81,905 2.21E-06 3,568.85 1.17
0.1 gm / 3.89 mm 8,191 2.21E-07 356.89 0.12
0.01 gm / 1.80 mm 819 2.21E-08 35.69 0.01
0.001 gm / 0.84 mm 82 2.21E-09 3.57 0.00

Weight of pure Zellerite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.25 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
 

Zellerite Classification

Help on  Dana Class: Dana Class: 15.03.01.01 (15)Hydrated Carbonates
  (15.03)where A+m B++n (XO3)p � x(H2O), (m+n):p = 1:1 and containing U, Th, Zr, Y
  (15.03.01)Dana Group
 
15.03.01.01 Zellerite Ca(UO2)(CO3)2•5(H2O) Pbnm,Pbn21 Ortho
 
15.03.01.02 Metazellerite Ca(UO2)(CO3)2•3(H2O) Pbn21,Pbnm Ortho
Help on  Strunz Class: Strunz Class: 05.EC.10 05 - CARBONATES (NITRATES)
  05.E - Uranyl Carbonates
  05.EC -UO2:CO3 < 1:1 - 1:2
 
05.EC.10 Metazellerite Ca(UO2)(CO3)2•3(H2O) Pbn21,Pbnm Ortho
 
05.EC.10 Zellerite Ca(UO2)(CO3)2•5(H2O) Pbnm,Pbn21 Ortho
 

Other Zellerite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Zellerite :
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 Zellerite Specimen Label here :

Zellerite

Ca(UO2)(CO3)2•5(H2O)
Dana No: 15.03.01.01 Strunz No: 05.EC.10
Locality:

 

Notes:

 

 
   
 


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