Uramphite Mineral Data

Uramphite Mineral Data +

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General Uramphite Information

Chemical Formula:

(NH4)(UO2)(PO4)·3(H2O)

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

Empirical Formula:

(NH₄)(UO₂)(PO₄)·3(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1957

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 37076

PDF 42-384

Uramphite Image

Images:

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

Uramphite Crystallography

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

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.8(1), 9.02(1), 3.26(0.9),

Physical Properties of Uramphite

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

Optical Properties of Uramphite

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.

Calculated Properties of Uramphite

Electron Density:

r_electron=3.32 gm/cc
note: r_Uramphite=3.70 gm/cc.

Fermion Index

Fermion Index = 0.036
Boson Index = 0.964

Photoelectric:

PE_Uramphite=1,378.05 barns/electron
U=PE_Uramphite x r_electron=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

Uramphite Classification

Dana Class:

40.2a.7.1 (40)Hydrated Phosphates, etc

(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

(40.2a.7)Dana Group

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

VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-

VII/E.02 - Meta-autunite group

VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m

VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 2₁/m 2/m

VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 2₁/n 2/m

VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m

VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m

VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 4₁/m 4/m

VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-95 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 2₁ 2

VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 4₁/? 4/m

VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m

VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-180 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho

VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m

Other Uramphite Information

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 :

Uramphite

(NH4)(UO2)(PO4)·3(H2O)
Dana No: 40.2a.7.1 Strunz No: VII/E.02-160
Locality:

Notes: