Renardite Mineral Data

General Renardite Information

Chemical Formula:

Pb(UO2)4(PO4)2(OH)4•7(H2O)

Composition:

Molecular Weight = 1,671.39 gm

Uranium 56.97 % U 64.62 % UO₂

Phosphorus 3.71 % P 8.49 % P₂O₅

Hydrogen 1.09 % H 9.70 % H₂O

Lead 12.40 % Pb 13.35 % PbO

Oxygen 25.85 % O

______ ______

100.00 % 96.17 % = TOTAL OXIDE

Empirical Formula:

Pb(UO₂)₄(PO₄)₂(OH)₄•7(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1928

Locality:

Kaslo mine, Shinkolobwe, Shaba, Katanga, Zaire. Link to MinDat.org Location Data.

Name Origin:

Named for Alphonse Francois Renard (1842-1903), mineralogist, University of Ghent, Belgium.

Name Pronunciation:

Renardite + Pronunciation

Renardite Image

Images:

Renardite

Comments: Bright yellow, tabular crystals of renardite on matrix.
Location: Grury, Saone-et-Loire, France. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Renardite Crystallography

Axial Ratios:

a:b:c =0.9211:1:0.7981

Cell Dimensions:

a = 15.88, b = 17.24, c = 13.76, Z = 6; V = 3,767.09 Den(Calc)= 4.42

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Bmmb

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

By Intensity(I/I_o): 7.95(1), 3.11(0.9), 2.88(0.8),3.96(0.7), 4.43(0.6), 5.83(0.6), 10.25(0.5), 3.4(0.4),

Physical Properties of Renardite

Cleavage:

{100} Perfect

Color:

Yellow.

Density:

4.34

Diaphaneity:

Transparent

Habit:

Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.

Optical Properties of Renardite

Gladstone-Dale:

CI meas= -0.285 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.262 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1652,KPDmeas= 0.1682,KC= 0.1309
Ncalc = 1.57 - 1.58

Optical Data:

Biaxial (-), a=1.715, b=1.736, g=1.739, bire=0.0240, 2V(Calc)=40, 2V(Meas)=41. Dispersion r > v.

Calculated Properties of Renardite

Electron Density:

Bulk Density (Electron Density)=3.78 gm/cc
note: Specific Gravity of Renardite =4.42 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_Renardite=1,735.65 barns/electron
U=PE_Renardite x r_electron=6,554.45 barns/cc.

Radioactivity:

GRapi = 4,148,547.89 (Gamma Ray American Petroleum Institute Units)
Concentration of Renardite per GRapi unit = 241.05 (PPB)

Renardite 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) 7.33 ± 1.83 grams of pure Renardite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 733.19 ±183.30 grams of pure Renardite .

**Estimated Radioactivity from Renardite** - 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 / 7.56 cm	101,968,247	2.76E-03	4,148,547.89	1,363.91
100 gm / 3.51 cm	10,196,825	2.76E-04	414,854.79	136.39
10 gm / 1.63 cm	1,019,682	2.76E-05	41,485.48	13.64
1 gm / 7.56 mm	101,968	2.76E-06	4,148.55	1.36
0.1 gm / 3.51 mm	10,197	2.76E-07	414.85	0.14
0.01 gm / 1.63 mm	1,020	2.76E-08	41.49	0.01
0.001 gm / 0.76 mm	102	2.76E-09	4.15	0.00

Weight of pure Renardite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.42 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

Renardite Classification

Dana Class:

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

(42.04)where (AB)5 (XO4)2 Zq · x(H2O)

(42.04.09)Arsenuranylite Group

42.04.09.01 Arsenuranylite Ca(UO2)4(AsO4)2(OH)4•6(H2O) Bmmb 2/m 2/m 2/m

42.04.09.02 Renardite Pb(UO2)4(PO4)2(OH)4•7(H2O) Bmmb 2/m 2/m 2/m

42.04.09.03 Kivuite? (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8•7(H2O) Unk Ortho

Strunz Class:

08.EC.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EC -UO2:RO4 = 3:2

08.EC.10 Arsenuranylite Ca(UO2)4(AsO4)2(OH)4•6(H2O) Bmmb 2/m 2/m 2/m

08.EC.10 Dewindtite Pb3[H(UO2)3O2(PO4)2]2•12(H2O) Bmmb 2/m 2/m 2/m

08.EC.10 Kivuite? (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8•7(H2O) Unk Ortho

08.EC.10 Renardite Pb(UO2)4(PO4)2(OH)4•7(H2O) Bmmb 2/m 2/m 2/m

08.EC.10 Phosphuranylite KCa(H3O)3(UO2)7(PO4)4O4•8(H2O) C mcm 2/m 2/m 2/m

08.EC.10 Yingjiangite (K2,Ca)(UO2)7(PO4)4(OH)6•6(H2O) Bmmb 2/m 2/m 2/m

Other Renardite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Renardite :
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
11 - Uranium Minerals

Search for Renardite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Renardite :

A Bijoux Google Search for Renardite
Adam's Minerals Google Search for Renardite
Cape Minerals Google Search for Renardite
Dakota Matrix Minerals Google Search for Renardite
Excalibur Mineral Corp. Google Search for Renardite
Exceptional Minerals Google Search for Renardite
John Betts Fine Minerals Search for Renardite
McDougall Minerals Google Search for Renardite
Mineral News Website Link
Rock and Mineral Shows Google Search for Renardite
Weinrich Minerals, Inc. Google Search for Renardite

Ask about Renardite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Renardite

Pb(UO2)4(PO4)2(OH)4•7(H2O)
Dana No: 42.04.09.02 Strunz No: 08.EC.10
Locality:

Notes: