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Uramphite Mineral Data

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General Uramphite Information

Help on Chemical  Formula: Chemical Formula: (NH4)(UO2)(PO4)•3(H2O)
Help on Composition: Composition: Molecular Weight = 437.08 gm
   Uranium     54.46 %  U    61.78 % UO2
   Phosphorus   7.09 %  P    16.24 % P2O5
   Hydrogen     0.92 %  H      -   % Calc as (NH4)2O
   Hydrogen     1.38 %  H    12.37 % H2O
   Nitrogen     3.20 %  N     5.96 % (NH4)2O
   Oxygen      32.94 %  O
              ______        ______ 
              100.00 %       96.34 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (NH4)(UO2)(PO4)•3(H2O)
Help on Environment: Environment: Formed on low-rank coal where uranium-bearing groundwater interacts with ammonium ions in sedimentary coal deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1957
Help on Locality: Locality: Tura-Kavak, Issyk-Kul'skaya Oblast', Kyrgyzstan Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition of (UR)anium and (AM)monium and (PH)osphate in the composition.
Help on Name Pronunciation: Name Pronunciation: Uramphite + Pronunciation Say URAMPHITE
Help on Synonym: Synonym: ICSD 37076
  PDF 42-384

Uramphite Image

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Comments: Thin encrustions of urampite on a fracture surface in sub-bituminous coal.
Location: Tura-Kavak, Issyk-Kul'skaya Oblast', Kyrgyzstan. Scale: See Image.
© Paul M. Schumacher

Uramphite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.29101
Help on Cell Dimensions: Cell Dimensions: a = 7.01, c = 9.05, Z = 2; V = 444.72 Den(Calc)= 3.26
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): 3.8(1), 9.02(1), 3.26(0.9),

Physical Properties of Uramphite

Help on Cleavage: Cleavage: {???} Distinct
Help on Color: Color: Bottle green, Light green.
Help on Density: Density: 3.7
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: Fluorescent, Short UV=medium yellow-green, Long UV=medium yellow-green.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: greenish white

Optical Properties of Uramphite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.17 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.328 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1773,KPDmeas= 0.1562,KC= 0.1335
Ncalc = 1.44 - 1.49
Help on Optical Data: Optical Data: Biaxial (-), a=1.564, b=1.585, g=1.585, bire=0.0210, 2V(Calc)=0, 2V(Meas)=0-3.

Calculated Properties of Uramphite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.32 gm/cc
note: Specific Gravity of Uramphite =3.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEUramphite =1,378.05 barns/electron
U=PEUramphite x relectron=4,572.88 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,163,138.58 (Gamma Ray American Petroleum Institute Units)
Concentration of Uramphite per GRapi unit = 240.20 (PPB)

Uramphite 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) 7.31 ± 1.83 grams of pure Uramphite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 730.62 ±182.65 grams of pure Uramphite .

Estimated Radioactivity from Uramphite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 8.02 cm 97,480,648 2.63E-03 4,163,138.58 1,368.70
100 gm / 3.72 cm 9,748,065 2.63E-04 416,313.86 136.87
10 gm / 1.73 cm 974,806 2.63E-05 41,631.39 13.69
1 gm / 8.02 mm 97,481 2.63E-06 4,163.14 1.37
0.1 gm / 3.72 mm 9,748 2.63E-07 416.31 0.14
0.01 gm / 1.73 mm 975 2.63E-08 41.63 0.01
0.001 gm / 0.80 mm 97 2.63E-09 4.16 0.00

Weight of pure Uramphite 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

Uramphite Classification

Help on  Dana Class: Dana Class: 40.02a.07.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.07)Dana Group
40.02a.07.01 Uramphite (NH4)(UO2)(PO4)•3(H2O) P 4/nmm 4/m 2/m 2/m
40.02a.07.02 Uramarsite! (NH4,H3O)2(UO2)2(AsO4,PO4)2•6H2O P 4/mmm 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 Uramphite Information

Help on References: References: 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 Uramphite :
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.07.01 Strunz No: 08.EB.15





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