Mundite Mineral Data

Mundite Mineral Data +

[Register] [Auction Rules] [Current Listing] [About Us] [Site Map]
e-Rocks.com, auction and sales venue for all rock and mineral enthusiasts
Our mission is to provide an online centre for Buyers and Sellers with reliable service and support
Brought to you by Thames Valley Minerals

General Mundite Information

Chemical Formula:

Al(UO2)3(PO4)2(OH)3·5(H2O)

Composition:

Molecular Weight = 1,168.11 gm

Uranium 61.13 % U 69.35 % UO₂

Aluminum 2.31 % Al 4.36 % Al₂O₃

Phosphorus 5.30 % P 12.15 % P₂O₅

Hydrogen 1.12 % H 10.02 % H₂O

Oxygen 30.13 % O

______ ______

100.00 % 95.89 % = TOTAL OXIDE

Empirical Formula:

Al(UO₂)₃(PO₄)₂(OH)₃·5(H₂O)

IMA Status:

Approved IMA 1981

Locality:

Kobokobo, Kivu, Zaire. Link to MinDat.org Location Data.

Name Origin:

Named for Walter Mund (1892-1956), radiochemist, University of Louvain, Belgium.

Mundite Image

Images:

Mundite

Comments: Bright yellow crystalline mundite grains.
Location: Kobokobo, Sud-Kivu, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Mundite Crystallography

Axial Ratios:

a:b:c =0.5513:1:0.4441

Cell Dimensions:

a = 17.08, b = 30.98, c = 13.76, Z = 16; V = 7,280.94 Den(Calc)= 4.26

Crystal System:

OrthorhombicSpace Group: P 2₁cn,Pmcn

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

By Intensity(I/I_o): 7.8(1), 3.37(0.7), 3.87(0.6),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: [ 0 1 0] [ 1 0 0] [ 0 0 1]

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Physical Properties of Mundite

Cleavage:

[010] Perfect, [100] Perfect, [001] Perfect

Color:

Golden yellow, Light yellow.

Density:

4.295

Diaphaniety:

Translucent

Hardness:

2-3 - Gypsum-Calcite

Streak:

white

Optical Properties of Mundite

Gladstone-Dale:

CI meas= -0.147 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.156 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1557,KPDmeas= 0.1544,KC= 0.1347

Optical Data:

Biaxial (-), a=1.62, b=1.682, g=1.688, bire=0.0680, 2V(Calc)=32, 2V(Meas)=33.

Pleochroism (x):

weak yellow.

Pleochroism (y):

weak yellow.

Pleochroism (z):

weak yellow.

Calculated Properties of Mundite

Electron Density:

r_electron=3.74 gm/cc
note: r_Mundite=4.30 gm/cc.

Fermion Index

Fermion Index = 0.00454
Boson Index = 0.99546

Photoelectric:

PE_Mundite=1,594.96 barns/electron
U=PE_Mundite x r_electron=5,958.34 barns/cc.

Radioactivity:

GRapi = 4,532,249.69 (Gamma Ray American Petroleum Institute Units)

Mundite 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) 6.71 ± 1.68 grams of pure Mundite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 671.12 ±167.78 grams of pure Mundite .

**Estimated Radioactivity from Mundite** - 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 / 7.63 cm	109,426,316	2.96E-03	4,532,249.69	1,490.05
100 gm / 3.54 cm	10,942,632	2.96E-04	453,224.97	149.01
10 gm / 1.64 cm	1,094,263	2.96E-05	45,322.50	14.90
1 gm / 7.63 mm	109,426	2.96E-06	4,532.25	1.49
0.1 gm / 3.54 mm	10,943	2.96E-07	453.22	0.15
0.01 gm / 1.64 mm	1,094	2.96E-08	45.32	0.01
0.001 gm / 0.76 mm	109	2.96E-09	4.53	0.00

Weight of pure Mundite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.30 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

Mundite Classification

Dana Class:

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

(42.7)where (AB)5 (XO4)3 Zq · x(H2O)

(42.7.13)Dana Group

42.7.13.1 Mundite Al(UO2)3(PO4)2(OH)3·5(H2O) P 2₁cn,Pmcn Ortho

Strunz Class:

VII/E.07-20 VII - Phosphates, Arsenates and Vanadates

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

VII/E.07 - Phosphuranylite series

VII/E.07-10 Phuralumite Al2(UO2)3(PO4)2(OH)6·10(H2O) P 2₁/a 2/m

VII/E.07-20 Mundite Al(UO2)3(PO4)2(OH)3·5(H2O) P 2₁cn,Pmcn Ortho

VII/E.07-25 Yingjiangite (K2,Ca)(UO2)7(PO4)4(OH)6·6(H2O) Bmmb 2/m 2/m 2/m

VII/E.07-30 Phosphuranylite KCa(H3O)3(UO2)7(PO4)4O4·8(H2O) C mcm 2/m 2/m 2/m

VII/E.07-40 Phurcalite Ca2(UO2)3O2(PO4)2·7(H2O) P bca 2/m 2/m 2/m

VII/E.07-50 Arsenuranylite Ca(UO2)4(AsO4)2(OH)4·6(H2O) Bmmb 2/m 2/m 2/m

VII/E.07-60 Bergenite Ca2Ba4[(UO3)2O2(PO4)2]3(H2O)16 P 2₁/c 2/m

VII/E.07-70 Francoisite-(Nd) (Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6(H2O) P 2₁/c 2/m

VII/E.07-80 Dewindtite Pb3[H(UO2)3O2(PO4)2]2·12(H2O) Bmmb 2/m 2/m 2/m

VII/E.07-90 Dumontite Pb2(UO2)3O2(PO4)2·5(H2O) P 2₁/m 2/m

VII/E.07-100 Hugelite Pb2(UO2)3(AsO4)2(OH)4·3(H2O) P 2₁/m 2/m

VII/E.07-110 Kamitugaite PbAl(UO2)5(PO4)2(OH)9·9.5(H2O) P1,P 1 Tri

VII/E.07-120 Kivuite? (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8·7(H2O) Unk Ortho

VII/E.07-130 Althupite ThAl(UO2)7(PO4)4(OH)5·15(H2O) P1 1

VII/E.07-140 Vanmeersscheite U(UO2)3(PO4)2(OH)6·4(H2O) P mn2₁ mm2

VII/E.07-150 Metavanmeersscheite U(UO2)3(PO4)2(OH)6·2(H2O) F dd2 mm2

Other Mundite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Mundite :
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

Search for Mundite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Mundite :
AA Mineral Specimens
B and L Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Mundite Mineral Data :

Ask about Mundite 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 Mundite Specimen Label here :

Mundite

Al(UO2)3(PO4)2(OH)3·5(H2O)
Dana No: 42.7.13.1 Strunz No: VII/E.07-20
Locality:

Notes: