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Abernathyite Mineral Data

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General Abernathyite Information

Help on Chemical  Formula: Chemical Formula: K(UO2)(AsO4)•4(H2O)
Help on Composition: Composition: Molecular Weight = 520.11 gm
   Potassium   7.52 %  K     9.06 % K2O
   Uranium    45.77 %  U    51.92 % UO2
   Arsenic    14.41 %  As   22.10 % As2O5
   Hydrogen    1.55 %  H    13.86 % H2O
   Oxygen     30.76 %  O
             ______        ______ 
             100.00 %       96.92 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K(UO2)(AsO4)•4(H2O)
Help on Environment: Environment: Rare secondary mineral coating fractures in bleached asphaltic sandstone hosting a Colorado Plateau-type uranium deposit.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1956
Help on Locality: Locality: Fuemrol No. 2 mine, Temple Mountain, Emery County, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Jess Abernathy, Moab, Utah, mine owner who found the first specimens.
Help on Name Pronunciation: Name Pronunciation: Abernathyite + Pronunciation Say ABERNATHYITE
Help on Synonym: Synonym: ICSD 15481
  PDF 16-386

Abernathyite Image

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Comments: Clear, yellow, crystalline abernathyite crystal group.
Location: Temple Mountain, Every County, Utah, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Abernathyite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.26638
Help on Cell Dimensions: Cell Dimensions: a = 7.17, c = 9.08, Z = 2; V = 466.79 Den(Calc)= 3.70
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/ncc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.14(1), 3.34(0.8), 3.84(0.8),

Physical Properties of Abernathyite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Yellow.
Help on Density: Density: 3.31 - 3.57, Average = 3.44
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luminescence: Luminescence: Fluorescent, Short UV=yellow green, Long UV=yellow green.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow

Optical Properties of Abernathyite

Help on Dichroism (e): Dichroism (e): pale yellow.
Help on Dichroism (w): Dichroism (w): yellow.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.112 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.034 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1577,KPDmeas= 0.1696,KC= 0.1526
Ncalc = 1.51 - 1.56
Help on Optical Data: Optical Data: Uniaxial (-), e=1.57, w=1.597, bire=0.0270.

Calculated Properties of Abernathyite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.30 gm/cc
note: Specific Gravity of Abernathyite =3.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.003454114
Boson Index = 0.996545886
Help on Photoelectric: Photoelectric: PEAbernathyite =1,175.18 barns/electron
U=PEAbernathyite x relectron=3,879.12 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,480,240.22 (Gamma Ray American Petroleum Institute Units)
Concentration of Abernathyite per GRapi unit = 287.34 (PPB)

Abernathyite 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) 8.74 ± 2.18 grams of pure Abernathyite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 873.98 ±218.50 grams of pure Abernathyite .

Estimated Radioactivity from Abernathyite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 8.02 cm 81,922,400 2.21E-03 3,480,240.22 1,144.19
100 gm / 3.72 cm 8,192,240 2.21E-04 348,024.02 114.42
10 gm / 1.73 cm 819,224 2.21E-05 34,802.40 11.44
1 gm / 8.02 mm 81,922 2.21E-06 3,480.24 1.14
0.1 gm / 3.72 mm 8,192 2.21E-07 348.02 0.11
0.01 gm / 1.73 mm 819 2.21E-08 34.80 0.01
0.001 gm / 0.80 mm 82 2.21E-09 3.48 0.00

Weight of pure Abernathyite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.70 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

Abernathyite Classification

Help on  Dana Class: Dana Class: 40.02a.09.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.09)Dana Group
40.02a.09.01 Abernathyite K(UO2)(AsO4)•4(H2O) P 4/ncc 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.EB.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EB -UO2:RO4 = 1:1
08.EB.15 Abernathyite K(UO2)(AsO4)•4(H2O) P 4/ncc 4/m 2/m 2/m
08.EB.15 Chernikovite (H3O)2(UO2)2(PO4)2•6(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.15 Meta-ankoleite K2(UO2)2(PO4)2•6(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.15 Natrouranospinite (Na2,Ca)(UO2)2(AsO4)2•5(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.15 Uramphite (NH4)(UO2)(PO4)•3(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.15 Trogerite H2(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m
08.EB.15 Uramarsite! (NH4,H3O)2(UO2)2(AsO4,PO4)2•6H2O P 4/mmm 4/m 2/m 2/m

Other Abernathyite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Abernathyite :
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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Dana No: 40.02a.09.01 Strunz No: 08.EB.15





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