IMA2004-029 Mineral Data

IMA2004-029 Mineral Data

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General IMA2004-029 Information

Chemical Formula:

(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6(H2O)

Composition:

Molecular Weight = 1,272.47 gm

Calcium 0.31 % Ca 0.44 % CaO

Cerium 6.61 % Ce 7.74 % Ce₂O₃

Uranium 56.12 % U 63.66 % UO₂

Phosphorus 4.87 % P 11.15 % P₂O₅

Hydrogen 1.03 % H 9.20 % H₂O

Neodymium 3.40 % Nd 3.97 % Nd₂O₃

Oxygen 27.66 % O

______ ______

100.00 % 96.17 % = TOTAL OXIDE

Empirical Formula:

Ce_0.6Nd_0.3Ca_0.1(UO₂)₃OOH(PO₄)₂·6(H₂O)

Environment:

Related to phosphuranyllite group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

La Creusaz, Valais, Switzerland, and Radium Ridge, South Australia Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2004-029 Crystallography

Axial Ratios:

a:b:c =0.5985:1:0.8833

Cell Dimensions:

a = 9.295, b = 15.53, c = 13.718, Z = 4; beta = 112.39° V = 1,830.93 Den(Calc)= 4.62

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 7.76(1), 3.14(0.8), 3.43(0.7),3.87(0.6), 5.77(0.6), 2.038(0.4), 4.37(0.3), 4.42(0.3),

Optical Properties of IMA2004-029

Optical Data:

NCalc= 1.61 - from Gladstone-Dale relationship (KC = 0.1329) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2004-029

Electron Density:

r_electron=3.99 gm/cc
note: r_IMA2004-029=4.62 gm/cc.

Fermion Index

Fermion Index = 0.01114
Boson Index = 0.98886

Photoelectric:

PE_IMA2004-029=1,529.60 barns/electron
U=PE_IMA2004-029 x r_electron=6,106.68 barns/cc.

Radioactivity:

GRapi = 4,142,763.92 (Gamma Ray American Petroleum Institute Units)

IMA2004-029 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) 7.34 ± 1.84 grams of pure IMA2004-029 .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 734.21 ±183.55 grams of pure IMA2004-029 .

**Estimated Radioactivity from IMA2004-029** - 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 / 7.45 cm	100,675,421	2.72E-03	4,142,763.92	1,362.00
100 gm / 3.46 cm	10,067,542	2.72E-04	414,276.39	136.20
10 gm / 1.60 cm	1,006,754	2.72E-05	41,427.64	13.62
1 gm / 7.45 mm	100,675	2.72E-06	4,142.76	1.36
0.1 gm / 3.46 mm	10,068	2.72E-07	414.28	0.14
0.01 gm / 1.60 mm	1,007	2.72E-08	41.43	0.01
0.001 gm / 0.74 mm	101	2.72E-09	4.14	0.00

Weight of pure IMA2004-029 in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.62 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
Estimated Thorium Activity ( 0.50 % Th) From Sum REE Elements (10.01 % REE)

IMA2004-029 Classification

Dana Class:

42.4.14.2 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.4)where (AB)5 (XO4)2 Zq · x(H2O)

(42.4.14)Dana Group

42.4.14.1 Francoisite-(Nd) (Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6(H2O) P 2₁/c 2/m

42.4.14.2 IMA2004-029 ! (Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6(H2O) P 2₁/c 2/m

Strunz Class:

VII/X.00-00 VII - Phosphates, Arsenates and Vanadates

VII/X - Unclassified Strunz Phosphates, Arsenates and Vanadates

VII/X.00 - Phosphuranyllite group

Other IMA2004-029 Information

See Also:

Links to other databases for IMA2004-029 :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch)

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Print or Cut-and-Paste your IMA2004-029 Specimen Label here :

IMA2004-029

(Ce,Nd,Ca)[(UO2)3O(OH)(PO4)2]·6(H2O)
Dana No: 42.4.14.2 Strunz No: VII/X.00-00
Locality:

Notes: