Natrozippeite Mineral Data

General Natrozippeite 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.

Synonym:

Sodium-zippite - Renamed natrozippite by Mineralogical Record, v39:131

Natrozippeite Image

Images:

Natrozippeite

Comments: Yellow encrustations of sodium-zippeite on matrix.
Location: Kovagoszolos, Mecsek Mts., Pecs Co., Hungary. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Natrozippeite 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:

Orthorhombic Space Group: Unk

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

By Intensity(I/I_o): 7.34(1), 3.66(0.55), 3.49(0.45),

Physical Properties of Natrozippeite

Color:

Yellow.

Density:

4.3

Diaphaneity:

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 Natrozippeite

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
Ncalc = 1.54 - 1.62

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 Natrozippeite

Electron Density:

Bulk Density (Electron Density)=3.80 gm/cc
note: Specific Gravity of Natrozippeite =4.30 gm/cc.

Fermion Index:

Fermion Index = 0.0046345529
Boson Index = 0.9953654471

Photoelectric:

PE_{Natrozippeite}=1,492.17 barns/electron
U=PE_{Natrozippeite} x r_electron=5,668.31 barns/cc.

Radioactivity:

GRapi = 4,374,080.34 (Gamma Ray American Petroleum Institute Units)
Concentration of Natrozippeite per GRapi unit = 228.62 (PPB)

Natrozippeite 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 Natrozippeite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 695.38 ±173.85 grams of pure Natrozippeite .

**Estimated Radioactivity from Natrozippeite** - 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	103,977,674	2.81E-03	4,374,080.34	1,438.05
100 gm / 3.54 cm	10,397,767	2.81E-04	437,408.03	143.81
10 gm / 1.64 cm	1,039,777	2.81E-05	43,740.80	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 Natrozippeite 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

Natrozippeite Classification

Dana Class:

31.10.04.02 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.10)miscellaneous

(31.10.04)Zippeite Group

31.10.04.01 Zippeite K4(UO2)6(SO4)3(OH)10•4(H2O) C 2/m 2/m

31.10.04.02 Natrozippeite Na4(UO2)6(SO4)3(OH)10•4(H2O) Unk Ortho

31.10.04.03 Magnesiozippeite Mg(H2O)3.5(UO2)2(SO4)O2 C 2/m 2/m

31.10.04.04 Nickelzippeite Ni2(UO2)6(SO4)3(OH)10•16(H2O) Unk Ortho

31.10.04.05 Zinc-zippeite Zn2(UO2)6(SO4)3(OH)10•16(H2O) Unk Ortho

31.10.04.06 Cobaltzippeite Co2(UO2)6(SO4)3(OH)10•16(H2O) Unk Ortho

31.10.04.07 Marecottite! Mg3(H2O)18[(UO2)4O3(SO4)2]2•10(H2O) P1 1

31.10.04.08 Pseudojohannite! Cu6.5[(UO2)4O4(SO4)2]2(OH)5•25H2O P1 or P1 Tri

31.10.04.09 IMA2009-008 Y2[(UO2)8O6(SO4)4(OH)2]•26H2O P1 1

Strunz Class:

07.EC.05 07 - SULFATES (SELENATES, TELLURATES)

07.E - Uranyl Sulfates

07.EC -With medium-sized and large cations

07.EC.05 Cobaltzippeite Co2(UO2)6(SO4)3(OH)10•16(H2O) Unk Ortho

07.EC.05 Magnesiozippeite Mg(H2O)3.5(UO2)2(SO4)O2 C 2/m 2/m

07.EC.05 Nickelzippeite Ni2(UO2)6(SO4)3(OH)10•16(H2O) Unk Ortho

07.EC.05 Natrozippeite Na4(UO2)6(SO4)3(OH)10•4(H2O) Unk Ortho

07.EC.05 Zinc-zippeite Zn2(UO2)6(SO4)3(OH)10•16(H2O) Unk Ortho

07.EC.05 Zippeite K4(UO2)6(SO4)3(OH)10•4(H2O) C 2/m 2/m

Other Natrozippeite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(List of New Min. Names,28-33th,197)

See Also:

Links to other databases for Natrozippeite :
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

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Natrozippeite

Na4(UO2)6(SO4)3(OH)10•4(H2O)
Dana No: 31.10.04.02 Strunz No: 07.EC.05
Locality:

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