Sodium-zippeite Mineral Data

John Betts Fine Minerals

General Sodium-zippeite Information
Chemical Formula:	Na4(UO2)6(SO4)3(OH)10·4(H2O)
Composition:	Molecular Weight = 2,458.63 gm
	Sodium     3.74 %  Na    5.04 % Na2O
	Uranium   58.09 %  U    65.90 % UO2
	Hydrogen   1.72 %  H    15.39 % H2O
	Sulfur     3.91 %  S     9.77 % SO3
	Oxygen    32.54 %  O
	______        ______
	100.00 %       96.10 % = TOTAL OXIDE
Empirical Formula:	Na4(UO2)6(SO4)3(OH)10·16(H2O)
IMA Status:	Approved IMA 1976
Locality:	Mayn mines on the Colorado Plateau including the Happy Jack mine, White Canyon, San Juan County, Utah, USA. Link to MinDat.org Location Data.
Name Origin:	Named for its composition and for Franz Xaver Maxmillian Zippe (1791-1863), Austrian mineralogist.
Sodium-zippeite Image
Images:	Sodium-zippeite Comments: Yellow encrustations of sodium-zippeite on matrix. Location: Kovagoszolos, Mecsek Mts., Pecs Co., Hungary. Scale: Picture size 0.5 cm. © Paul M. Schumacher
Sodium-zippeite Crystallography
Axial Ratios:	a:b:c =0.1285:1:0.2124
Cell Dimensions:	a = 8.8, b = 68.48, c = 14.55, Z = 8; V = 8,768.18 Den(Calc)= 3.72
Crystal System:	OrthorhombicSpace Group: Unk
X Ray Diffraction:	By Intensity(I/Io): 7.34(1), 3.66(0.55), 3.49(0.45),
Physical Properties of Sodium-zippeite
Color:	Yellow.
Density:	4.3
Diaphaniety:	Transparent to Translucent
Habit:	Encrustations - Forms crust-like aggregates on matrix.
Hardness:	5-5.5 - Apatite-Knife Blade
Luminescence:	Fluorescent and radioactive, Short UV=bright yellow, Long UV=bright yellow.
Luster:	Earthy (Dull)
Optical Properties of Sodium-zippeite
Gladstone-Dale:	CI meas= -0.1 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.271 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1844,KPDmeas= 0.1595,KC= 0.1451
Optical Data:	Biaxial (-), a=1.63, b=1.69, g=1.738, bire=0.1080, 2V(Calc)=80, 2V(Meas)=80.
Pleochroism (x):	colorless or pale yellow.
Pleochroism (y):	yellow or yellow.
Pleochroism (z):	dark yellow or dark yellow.
Calculated Properties of Sodium-zippeite
Electron Density:	relectron=3.80 gm/cc note: rSodium-zippeite =4.30 gm/cc.
Fermion Index	Fermion Index = 0.00463 Boson Index = 0.99537
Photoelectric:	PESodium-zippeite =1,492.17 barns/electron U=PESodium-zippeite x relectron=5,668.31 barns/cc.
Radioactivity:	GRapi = 4,374,078.50 (Gamma Ray American Petroleum Institute Units) Sodium-zippeite 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) 6.95 ± 1.74 grams of pure Sodium-zippeite . Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 695.38 ±173.85 grams of pure Sodium-zippeite . Estimated Radioactivity from Sodium-zippeite - 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 103,977,663 2.81E-03 4,374,078.50 1,438.05 100 gm / 3.54 cm 10,397,766 2.81E-04 437,407.85 143.81 10 gm / 1.64 cm 1,039,777 2.81E-05 43,740.79 14.38 1 gm / 7.63 mm 103,978 2.81E-06 4,374.08 1.44 0.1 gm / 3.54 mm 10,398 2.81E-07 437.41 0.14 0.01 gm / 1.64 mm 1,040 2.81E-08 43.74 0.01 0.001 gm / 0.76 mm 104 2.81E-09 4.37 0.00 Weight of pure Sodium-zippeite 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
Sodium-zippeite Classification
Dana Class:	31.10.4.2 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
	(31.10)miscellaneous
	(31.10.4)Zippeite Group
	31.10.4.1 Zippeite K4(UO2)6(SO4)3(OH)10·4(H2O) C 2/m 2/m
	31.10.4.2 Sodium-zippeite Na4(UO2)6(SO4)3(OH)10·4(H2O) Unk Ortho
	31.10.4.3 Magnesium-zippeite Mg(H2O)3.5(UO2)2(SO4)O2 C 2/m 2/m
	31.10.4.4 Nickel-zippeite Ni2(UO2)6(SO4)3(OH)10·16(H2O) Unk Ortho
	31.10.4.5 Zinc-zippeite Zn2(UO2)6(SO4)3(OH)10·16(H2O) Unk Ortho
	31.10.4.6 Cobalt-zippeite Co2(UO2)6(SO4)3(OH)10·16(H2O) Unk Ortho
	31.10.4.7 Marecottite! Mg3(H2O)18[(UO2)4O3(SO4)2]2·10(H2O) P1 1
Strunz Class:	VI/D.20-30 VI - Sulfates,Chromates,Molybdates and Tungstates
	VI/D - Uranylsulfates [UO2]4+ - [SO4]2-
	VI/D.20 - Uranopilite - Rabejacite series
	VI/D.20-05 Jachymovite! (UO2)8(SO4)(OH)14·13(H2O) P 21,P 21/m Mono
	VI/D.20-10 Uranopilite [(UO2)6(SO4)O2(OH)6(H2O)6]·8(H2O) P1 1
	VI/D.20-20 Meta-uranopilite (UO2)6(SO4)(OH)10·5(H2O) Unk Ortho
	VI/D.20-30 Sodium-zippeite Na4(UO2)6(SO4)3(OH)10·4(H2O) Unk Ortho
	VI/D.20-40 Zippeite K4(UO2)6(SO4)3(OH)10·4(H2O) C 2/m 2/m
	VI/D.20-50 Magnesium-zippeite Mg(H2O)3.5(UO2)2(SO4)O2 C 2/m 2/m
	VI/D.20-60 Cobalt-zippeite Co2(UO2)6(SO4)3(OH)10·16(H2O) Unk Ortho
	VI/D.20-70 Nickel-zippeite Ni2(UO2)6(SO4)3(OH)10·16(H2O) Unk Ortho
	VI/D.20-80 Zinc-zippeite Zn2(UO2)6(SO4)3(OH)10·16(H2O) Unk Ortho
	VI/D.20-85 Deliensite! Fe(UO2)2(SO4)2(OH)2·3(H2O) Pnnm or Pnn2 Ortho
	VI/D.20-90 Rabejacite Ca(UO2)4(SO4)2(OH)6·6(H2O) Unk Ortho
Other Sodium-zippeite Information
References:	NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(List of New Min. Names,28-33th,197)
See Also:	Links to other databases for Sodium-zippeite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Sodium-zippeite using:   Web webmineral.com [ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO] Visit our Advertisers for Sodium-zippeite : AA Mineral Specimens B & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Sodium-zippeite Mineral Data : Ask about Sodium-zippeite 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 Sodium-zippeite Specimen Label here : Sodium-zippeite Na4(UO2)6(SO4)3(OH)10·4(H2O) Dana No: 31.10.4.2 Strunz No: VI/D.20-30 Locality:   Notes: