General Uramphite Information
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Chemical Formula: |
(NH4)(UO2)(PO4)·3(H2O) |
Composition: |
Molecular Weight = 437.08 gm |
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Uranium 54.46 % U 61.78 % UO2 |
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Phosphorus 7.09 % P 16.24 % P2O5 |
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Hydrogen 0.92 % H - % Calc as (NH4)2O |
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Hydrogen 1.38 % H 12.37 % H2O |
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Nitrogen 3.20 % N 5.96 % (NH4)2O |
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Oxygen 32.94 % O |
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______ ______ |
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100.00 % 96.34 % = TOTAL OXIDE |
Empirical Formula: |
(NH4)(UO2)(PO4)·3(H2O) |
IMA Status: |
Valid Species (Pre-IMA) 1957 |
Locality: |
Link to MinDat.org Location Data. |
Synonym: |
ICSD 37076 |
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PDF 42-384 |
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Uramphite Image |
Images:
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Uramphite
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 |
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Uramphite Crystallography
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Axial Ratios: |
a:c = 1:1.29101 |
Cell Dimensions: |
a = 7.01, c = 9.05, Z = 2; V = 444.72 Den(Calc)= 3.26 |
Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/nmm |
X Ray Diffraction: |
By Intensity(I/Io): 3.8(1), 9.02(1), 3.26(0.9), |
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Physical Properties of Uramphite
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Cleavage: |
[???] Distinct |
Color: |
Bottle green, Light green. |
Density: |
3.7 |
Diaphaniety: |
Transparent to Translucent |
Hardness: |
2-2.5 - Gypsum-Finger Nail |
Luster: |
Vitreous (Glassy) |
Streak: |
greenish white |
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Optical Properties of Uramphite
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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 |
Optical Data: |
Biaxial (-), a=1.564, b=1.585, g=1.585, bire=0.0210, 2V(Calc)=0, 2V(Meas)=0-3. |
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Calculated Properties of Uramphite
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Electron Density: |
relectron=3.32 gm/cc note: rUramphite =3.70 gm/cc. |
Fermion Index |
Fermion Index = 0.036 Boson Index = 0.964 |
Photoelectric: |
PEUramphite =1,378.05 barns/electron U=PEUramphite x relectron=4,572.88 barns/cc. |
Radioactivity: |
GRapi = 4,163,137.07 (Gamma Ray American Petroleum Institute Units)
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
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 / 8.02 cm |
97,480,643 |
2.63E-03 |
4,163,137.07 |
1,368.70 |
| 100 gm / 3.72 cm |
9,748,064 |
2.63E-04 |
416,313.71 |
136.87 |
| 10 gm / 1.73 cm |
974,806 |
2.63E-05 |
41,631.37 |
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
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Uramphite Classification
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Dana Class: |
40.2a.7.1 (40)Hydrated Phosphates, etc |
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(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++ |
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(40.2a.7)Dana Group |
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40.2a.7.1 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m |
Strunz Class: |
VII/E.02-160 VII - Phosphates, Arsenates and Vanadates |
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VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6- |
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VII/E.02 - Meta-autunite group |
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VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m |
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VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 21/m 2/m |
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VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
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VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 21/n 2/m |
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VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
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VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m |
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VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m |
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VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 41/m 4/m |
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VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-95 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 21 2 |
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VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 41/? 4/m |
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VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m |
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VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m |
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VII/E.02-180 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho |
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VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m |
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Other Uramphite Information
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References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Uramphite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - EUROmin Project
4 -Google Images
5 -Google Scholar
6 -Handbook of Mineralogy (UofA)
7 -MinDAT
8 -MinMax(Deutsch)
9 -MinMax(English)
10 -Mineralienatlas (Deutsch)
11 -QUT Mineral Atlas
12 - Uranium Minerals
13 -École des Mines de Paris
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Print or Cut-and-Paste your Uramphite Specimen Label here :
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Uramphite
(NH4)(UO2)(PO4)·3(H2O)
Dana No: 40.2a.7.1 Strunz No: VII/E.02-160
Locality:
Notes:
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