Lakebogaite Mineral Data

Lakebogaite Mineral Data
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General Lakebogaite Information

Help on Chemical Formula: Chemical Formula: CaNaFe+++2H(UO2)2(PO4)4(OH)2(H2O)8
Help on Composition: Composition: Molecular Weight = 1,231.53 gm
   Sodium       1.49 %  Na    2.01 % Na2O
   Strontium    0.71 %  Sr    0.84 % SrO
   Calcium      3.25 %  Ca    4.55 % CaO
   Uranium     34.79 %  U    39.47 % UO2
   Aluminum     0.66 %  Al    1.24 % Al2O3
   Iron         8.39 %  Fe   11.99 % Fe2O3
   Phosphorus  10.24 %  P    23.46 % P2O5
   Hydrogen     1.49 %  H    13.34 % H2O
   Oxygen      38.97 %  O
              ______        ______ 
              100.00 %       96.91 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaNa0.8Sr0.1Fe3+1.85Al0.3(UO2)1.8(PO4)4.07(OH)2(H2O)8.12
Help on Environment: Environment: Uranyl phosphate.
Help on IMA Status: IMA Status: Approved IMA 2007 (Dana # Added)
Help on Locality: Locality: A quarry, 10 km SSW of the township of Lake Boga, north-western Victoria, Australia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2007-001
 

Lakebogaite Image

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Lakebogaite

Comments: Yellow, tabular, prismatic lakebogaite crystal with Na-analogue of meurigite (IMA 2007-024) globules on a quartz matrix.
Location: A quarry, 10 km SSW of the township of Lake Boga, north-western Victoria, Australia. Scale: Crystal size 0.4 mm across.
© American Mineralogist

Lakebogaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.7684:1:2.6357
Help on Cell Dimensions: Cell Dimensions: a = 19.6441, b = 7.0958, c = 18.7029, Z = 4; beta = 115.692° V = 2,349.27 Den(Calc)= 3.48
Help on Crystal System: Crystal System: Monoclinic - DomaticH-M Symbol (m) Space Group: Cc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.6(1), 3.16(0.4), 2.002(0.2),2.797(0.2), 3.31(0.2), 3.56(0.2), 3.8(0.2), 4.07(0.2),
Click Here for Large Lakebogaite Structure Window Crystal Structure:

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Mills S J , Birch W D , Kolitsch U , Mumme W G , Grey I E , American Mineralogist , 93 (2008) p.691-697, Lakebogaite, CaNaFe3+2H(UO2)2(PO4)4(OH)2(H2O)8, a new uranyl phosphate with a, unique crystal structure from Victoria, Australia, Locality: Upper Devonian granite, near Lake Boga, northern Victoria, Australia

 

Physical Properties of Lakebogaite

Help on Cleavage: Cleavage: {h0l} Indistinct
Help on Color: Color: Bright lemon yellow.
Help on Density: Density: 2.995 - 4.3, Average = 3.64
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Blocky - Crystal shape tends to be equant (e.g. feldspars).
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale yellow
 

Optical Properties of Lakebogaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.016 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.065 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1945,KPDmeas= 0.1856,KC= 0.1827
Ncalc = 1.55 - 1.79
Help on Optical Data: Optical Data: Biaxial (+), a=1.664, b=1.681, g=1.686, bire=0.0220, 2V(Calc)=56, 2V(Meas)=80-85. Dispersion r > v strong.
 

Calculated Properties of Lakebogaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.37 gm/cc
note: Specific Gravity of Lakebogaite =3.65 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0050147312
Boson Index = 0.9949852688
Help on Photoelectric: Photoelectric: PELakebogaite = 857.94 barns/electron
U=PELakebogaite x relectron=2,894.17 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2,742,618.31 (Gamma Ray American Petroleum Institute Units)
Concentration of Lakebogaite per GRapi unit = 364.62 (PPB)

Lakebogaite 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) 11.09 ± 2.77 grams of pure Lakebogaite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1109.0 ±277.26 grams of pure Lakebogaite .

Estimated Radioactivity from Lakebogaite - very strong
Specimen
Size
Weight/Volume
(Sphere) *		 Calculated
Activity
Becquerels
(Bq)		 Calculated
Activity
Curies (Ci)		 Estimated
Activity
GR(api)		 Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 8.06 cm 62,274,736 1.68E-03 2,742,618.31 901.68
100 gm / 3.74 cm 6,227,474 1.68E-04 274,261.83 90.17
10 gm / 1.74 cm 622,747 1.68E-05 27,426.18 9.02
1 gm / 8.06 mm 62,275 1.68E-06 2,742.62 0.90
0.1 gm / 3.74 mm 6,227 1.68E-07 274.26 0.09
0.01 gm / 1.74 mm 623 1.68E-08 27.43 0.01
0.001 gm / 0.81 mm 62 1.68E-09 2.74 0.00

Weight of pure Lakebogaite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.65 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
 

Lakebogaite Classification
Help on Dana Class: Dana Class: 42.04.06.02 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.04)where (AB)5 (XO4)2 Zq · x(H2O)
  (42.04.06)Phuralumite Group
 
42.04.06.01 Phuralumite Al2(UO2)3(PO4)2(OH)6•10(H2O) P 21/a 2/m
 
42.04.06.02 Lakebogaite! CaNaFe2H(UO2)2(PO4)4(OH)2(H2O)8 Cc m
Help on Strunz Class: Strunz Class: 08.EA.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EA -UO2:RO4 = 1:2
 
08.EA.20 Lakebogaite! CaNaFe2H(UO2)2(PO4)4(OH)2(H2O)8 Cc m
 

Other Lakebogaite Information
Help on References: References: NAME( AmMin. V93:691) PHYS. PROP.(AmMin. V93:691) OPTIC PROP.(AmMin. V93:691)
Help on See Also: See Also: Links to other databases for Lakebogaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Lakebogaite

CaNaFe+++2H(UO2)2(PO4)4(OH)2(H2O)8
Dana No: 42.04.06.02 Strunz No: 08.EA.20
Locality:

 

Notes: