Mineralogy Database

Meta-ankoleite Mineral Data

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General Meta-ankoleite Information

Help on Chemical  Formula: Chemical Formula: K2(UO2)2(PO4)2•6(H2O)
Help on Composition: Composition: Molecular Weight = 916.29 gm
   Potassium    8.53 %  K    10.28 % K2O
   Uranium     51.96 %  U    58.94 % UO2
   Phosphorus   6.76 %  P    15.49 % P2O5
   Hydrogen     1.32 %  H    11.80 % H2O
   Oxygen      31.43 %  O
              ______        ______ 
              100.00 %       96.51 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2(UO2)2(PO4)2•6(H2O)
Help on IMA Status: IMA Status: Approved IMA 1966
Help on Locality: Locality: Mungenyi pegmatite, Ankole District, Uganda. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: Ankoleite
  Potassium autunite
 

Meta-ankoleite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.27141
Help on Cell Dimensions: Cell Dimensions: a = 6.993, c = 8.891, Z = 1; V = 434.79 Den(Calc)= 3.50
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/nmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.92(1), 3.73(0.65), 3.25(0.55),
 

Physical Properties of Meta-ankoleite

Help on Color: Color: Yellow.
Help on Density: Density: 3.54
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Lamellar - Thin laminae producing a lamellar structure.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: Fluorescent, Short UV=yellow green, Long UV=yellow green.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale yellow
 

Optical Properties of Meta-ankoleite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.091 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.104 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1629,KPDmeas= 0.161,KC= 0.1475
Ncalc = 1.52
Help on Optical Data: Optical Data: Uniaxial (-), e=1.56, w=1.58, bire=0.0200.
 

Calculated Properties of Meta-ankoleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.15 gm/cc
note: Specific Gravity of Meta-ankoleite =3.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0039038546
Boson Index = 0.9960961454
Help on Photoelectric: Photoelectric: PEMeta-ankoleite =1,324.94 barns/electron
U=PEMeta-ankoleite x relectron=4,176.93 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,943,966.09 (Gamma Ray American Petroleum Institute Units)
Concentration of Meta-ankoleite per GRapi unit = 253.55 (PPB)

Meta-ankoleite 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) 7.71 ± 1.93 grams of pure Meta-ankoleite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 771.22 ±192.81 grams of pure Meta-ankoleite .

Estimated Radioactivity from Meta-ankoleite - 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 / 8.14 cm 93,002,270 2.51E-03 3,943,966.09 1,296.65
100 gm / 3.78 cm 9,300,227 2.51E-04 394,396.61 129.66
10 gm / 1.75 cm 930,023 2.51E-05 39,439.66 12.97
1 gm / 8.14 mm 93,002 2.51E-06 3,943.97 1.30
0.1 gm / 3.78 mm 9,300 2.51E-07 394.40 0.13
0.01 gm / 1.75 mm 930 2.51E-08 39.44 0.01
0.001 gm / 0.81 mm 93 2.51E-09 3.94 0.00

Weight of pure Meta-ankoleite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.54 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
 

Meta-ankoleite Classification

Help on  Dana Class: Dana Class: 40.02a.08.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.08)Dana Group
 
40.02a.08.01 Meta-ankoleite K2(UO2)2(PO4)2•6(H2O) P 4/nmm 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 Meta-ankoleite Information

Help on References: References: NAME( AmMin) 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 Meta-ankoleite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
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 Meta-ankoleite Specimen Label here :

Meta-ankoleite

K2(UO2)2(PO4)2•6(H2O)
Dana No: 40.02a.08.01 Strunz No: 08.EB.15
Locality:

 

Notes:

 

 
   
 


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