Zinc-zippeite Mineral Data

General Zinc-zippeite Information

Chemical Formula:

Zn++2(UO2)6(SO4)3(OH)10•16(H2O)

Composition:

Molecular Weight = 2,497.45 gm

Uranium 57.19 % U 64.87 % UO₂

Zinc 5.24 % Zn 6.52 % ZnO

Hydrogen 1.70 % H 15.15 % H₂O

Sulfur 3.85 % S 9.62 % SO₃

Oxygen 32.03 % O

______ ______

100.00 % 96.16 % = TOTAL OXIDE

Empirical Formula:

Zn₂(UO₂)₆(SO₄)₃(OH)₁₀•16(H₂O)

IMA Status:

Approved IMA 1976

Locality:

Hillside mine, Bagdad, Yavapai County, Arizona, USA. Link to MinDat.org Location Data.

Name Origin:

Named for its composition and for Franz Xaver Maxmillion Zippe (1791-1863), Austrian mineralogist.

Name Pronunciation:

Zinc-zippeite

Synonym:

Zinc-zippeite - Renamed Zinczippeite by Mineralogical Record, v39 (2008), p131

Zinc-zippeite Crystallography

Crystal System:

Orthorhombic Space Group: Unk

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

By Intensity(I/I_o): 7.08(1), 3.54(0.5), 3.44(0.4),3.1(0.3), 9.62(0.3), 1.94(0.2), 2.47(0.2), 4.84(0.1),

Physical Properties of Zinc-zippeite

Cleavage:

{010} Distinct

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, Short UV=bright yellow, Long UV=bright yellow.

Luster:

Earthy (Dull)

Optical Properties of Zinc-zippeite

Gladstone-Dale:

CI meas= -0.173 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1686,KC= 0.1437
Ncalc = 1.62

Optical Data:

Biaxial (-), a=1.7-1.75

Calculated Properties of Zinc-zippeite

Electron Density:

Bulk Density (Electron Density)=3.79 gm/cc
note: Specific Gravity of Zinc-zippeite =4.30 gm/cc.

Fermion Index:

Fermion Index = 0.0067094902
Boson Index = 0.9932905098

Photoelectric:

PE_{Zinc-zippeite}=1,473.28 barns/electron
U=PE_{Zinc-zippeite} x r_electron=5,590.72 barns/cc.

Radioactivity:

GRapi = 4,301,609.31 (Gamma Ray American Petroleum Institute Units)
Concentration of Zinc-zippeite per GRapi unit = 232.47 (PPB)

Zinc-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) 7.07 ± 1.77 grams of pure Zinc-zippeite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 707.10 ±176.77 grams of pure Zinc-zippeite .

**Estimated Radioactivity from Zinc-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	102,361,424	2.77E-03	4,301,609.31	1,414.23
100 gm / 3.54 cm	10,236,142	2.77E-04	430,160.93	141.42
10 gm / 1.64 cm	1,023,614	2.77E-05	43,016.09	14.14
1 gm / 7.63 mm	102,361	2.77E-06	4,301.61	1.41
0.1 gm / 3.54 mm	10,236	2.77E-07	430.16	0.14
0.01 gm / 1.64 mm	1,024	2.77E-08	43.02	0.01
0.001 gm / 0.76 mm	102	2.77E-09	4.30	0.00

Weight of pure Zinc-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

Zinc-zippeite Classification

Dana Class:

31.10.04.05 (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 Zinc-zippeite Information

References:

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

See Also:

Links to other databases for Zinc-zippeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info
12 - Uranium Minerals

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Zinc-zippeite

Zn++2(UO2)6(SO4)3(OH)10•16(H2O)
Dana No: 31.10.04.05 Strunz No: 07.EC.05
Locality:

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