Osakaite Mineral Data

Osakaite Mineral Data
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General Osakaite Information

Help on Chemical Formula: Chemical Formula: Zn4SO4(OH)6•5H2O
Help on Composition: Composition: Molecular Weight = 548.75 gm
   Zinc      44.69 %  Zn   55.62 % ZnO
   Copper     2.78 %  Cu    3.48 % CuO
   Hydrogen   2.93 %  H    26.17 % H2O
   Sulfur     5.90 %  S    14.74 % SO3
   Oxygen    43.71 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn3.75Cu0.24(SO4)1.01(OH)5.96•4.99(H2O)
Help on Environment: Environment: Found in gallery walls and in cracks in Jurassic shales (Cu, Zn, Pb, Fe, and Mn deposits). New structure type. Dehydrates to namuwite.
Help on IMA Status: IMA Status: Approved IMA 2006 (Dana # Added)
Help on Locality: Locality: Hirao mine, Minoo (Minoh) City, Osaka Prefecture, Japan Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
 

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Osakaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0025:1:1.3226
Help on Cell Dimensions: Cell Dimensions: a = 8.358, b = 8.337, c = 11.027, Z = 2; alpha = 94.97°, beta = 83.16°, gamma = 119.6° V = 660.84 Den(Calc)= 2.76
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.96(1), 2.562(0.9), 2.663(0.8),3.229(0.8), 2.717(0.21), 1.574(0.18), 3.642(0.17), 5.47(0.16),
 

Physical Properties of Osakaite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: White, Pale blue.
Help on Density: Density: 2.7
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white or pale blue
 

Optical Properties of Osakaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.016 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.034 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2017,KPDmeas= 0.2054,KC= 0.2088
Ncalc = 1.56 - 1.57
Help on Optical Data: Optical Data: Biaxial (-), a=1.532, b=1.565, g=1.567, bire=0.0350
 

Calculated Properties of Osakaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.67 gm/cc
note: Specific Gravity of Osakaite =2.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEOsakaite = 23.22 barns/electron
U=PEOsakaite x rElectron Density= 62.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Osakaite is Not Radioactive
 

Osakaite Classification
Help on Dana Class: Dana Class: 31.01.06.03 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.01)where (A+ B++)m (XO4)p Zq·x(H2O), where m:p>6:1
  (31.01.06)Schulenbergite group
 
31.01.06.01 Schulenbergite (Cu,Zn)7(SO4,CO3)2(OH)10•3(H2O) Hex Hex
 
31.01.06.02 Bechererite! (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2 P 3 3
 
31.01.06.03 Osakaite! Zn4SO4(OH)6•5H2O P1 1
 
31.01.06.04 Zn-Schulenbergite! (Zn,Cu)7(SO4,CO3)2(OH)10•3(H2O) Hex Hex
Help on Strunz Class: Strunz Class: 07.DE.40 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DE -With only medium-sized cations; unclassified
 
07.DE.40 Osakaite! Zn4SO4(OH)6•5H2O P1 1
 

Other Osakaite Information
Help on References: References: NAME( AmMin, v93:1688) PHYS. PROP.(AmMin, v93:1688) OPTIC PROP.(AmMin, v93:1688)
Help on See Also: See Also: Links to other databases for Osakaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Osakaite

Zn4SO4(OH)6•5H2O
Dana No: 31.01.06.03 Strunz No: 07.DE.40
Locality:

 

Notes: