Zippeite  Mineral Data

Zippeite Mineral Data

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General Zippeite Information

Help on Chemical  Formula: Chemical Formula: K4(UO2)6(SO4)3(OH)10•4(H2O)
Help on Composition: Composition: Molecular Weight = 2,306.88 gm
   Potassium   6.78 %  K     8.17 % K2O
   Uranium    61.91 %  U    70.23 % UO2
   Hydrogen    0.79 %  H     7.03 % H2O
   Sulfur      4.17 %  S    10.41 % SO3
   Oxygen     26.35 %  O
             ______        ______ 
             100.00 %       95.84 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K4(UO2)6(SO4)3(OH)10•4(H2O)
Help on Environment: Environment: Common in underground uranium mines.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1845
Help on Locality: Locality: Jachymov (St. Joachimsthal), Bohemia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Franz Xaver Maxmillian Zippe (1791-1863), Austrian mineralogist.
Help on Name Pronunciation: Name Pronunciation: Zippeite Say ZIPPEITE
Help on Synonym: Synonym: ICSD 81585
  PDF 29-1062
 

Zippeite Image

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Zippeite

Comments: Sandstone with a 1.5 cm vein of black uraninite bisected with a 2mm vein of bright yellow zippeite.
Location: Jackpot Mine, Laguna Mining District, Cibole City, New Mexico. Scale: 4.8 cm high.
© Paul M. Schumacher

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Zippeite   Uranopilite

Comments: Bright yellow uranopilite and reddish brown zippeite encrustations on uranium ore.
Location: Happy Jack Mine, White Canyon, Utah. Scale: 3 cm.
© John Veevaert

Zippeite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6234:1:0.6263
Help on Cell Dimensions: Cell Dimensions: a = 8.81, b = 14.13, c = 8.85, Z = 1; beta = 104.25° V = 1,067.80 Den(Calc)= 3.59
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.06(1), 3.12(0.9), 3.51(0.8),
Click Here for Large Zippeite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Vochten R , Van Haverbeke L , Van Springel K , Blaton N , Peeters O M , The Canadian Mineralogist , 33 (1995) p.1091-1101, The structure and physicochemical characteristics of synthetic zippeite, Note: S occupancies increase from .5 to full to match formula

View Additional jPOWD Structure files for Zippeite
[1] [2] [3] [4] [5] [6] [7] [8]
 

Physical Properties of Zippeite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Yellow, Golden yellow, Orange red, Reddish brown.
Help on Density: Density: 3.66
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Pulverulent - Forms a loose, poorly-coherent powdery mass.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luminescence: Luminescence: Fluorescent, Short UV=bright yellow, Long UV=bright yellow.
Help on Luster: Luster: Earthy (Dull)
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: yellow white
 

Optical Properties of Zippeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.477 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.505 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1935,KPDmeas= 0.1898,KC= 0.1286
Ncalc = 1.46 - 1.47
Help on Optical Data: Optical Data: Biaxial (-), a=1.55-1.655, b=1.717, g=1.765, bire=0.1100-0.2150
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): pale yellow.
Help on Pleochroism (z): Pleochroism (z): yellow.
 

Calculated Properties of Zippeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.17 gm/cc
note: Specific Gravity of Zippeite =3.66 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0049060324
Boson Index = 0.9950939676
Help on Photoelectric: Photoelectric: PEZippeite =1,624.41 barns/electron
U=PEZippeite x relectron=5,144.11 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,565,953.43 (Gamma Ray American Petroleum Institute Units)
Concentration of Zippeite per GRapi unit = 219.01 (PPB)

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) 6.66 ± 1.67 grams of pure Zippeite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 666.16 ±166.54 grams of pure Zippeite .

Estimated Radioactivity from Zippeite - 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 / 8.05 cm 110,819,485 3.00E-03 4,565,953.43 1,501.14
100 gm / 3.74 cm 11,081,949 3.00E-04 456,595.34 150.11
10 gm / 1.73 cm 1,108,195 3.00E-05 45,659.53 15.01
1 gm / 8.05 mm 110,819 3.00E-06 4,565.95 1.50
0.1 gm / 3.74 mm 11,082 3.00E-07 456.60 0.15
0.01 gm / 1.73 mm 1,108 3.00E-08 45.66 0.02
0.001 gm / 0.81 mm 111 3.00E-09 4.57 0.00

Weight of pure Zippeite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.66 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
 

Zippeite Classification

Help on  Dana Class: Dana Class: 31.10.04.01 (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
Help on  Strunz Class: 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 Zippeite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Zippeite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - Uranium Minerals
17 - WWW-MINCRYST
18 - YupRocks

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Ask about 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 Espaņol

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

Zippeite

K4(UO2)6(SO4)3(OH)10•4(H2O)
Dana No: 31.10.04.01 Strunz No: 07.EC.05
Locality:

 

Notes: