Bukovskyite Mineral Data + Say BUKOVSKYITE

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General Bukovskyite Information

Help on Chemical  Formula: Chemical Formula: Fe+++2(AsO4)(SO4)(OH)·7(H2O)
Help on Composition: Composition: Molecular Weight = 489.79 gm
   Iron      22.80 %  Fe   29.34 % FeO
   Arsenic   15.30 %  As   23.46 % As2O5
   Hydrogen   3.09 %  H    27.59 % H2O
   Sulfur     6.55 %  S    16.35 % SO3
   Oxygen    52.27 %  O
            ______        ______ 
            100.00 %       96.73 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+2(AsO4)(SO4)(OH)·7(H2O)
Help on Environment: Environment: An alteration product of arsenopyrite.
Help on IMA Status: IMA Status: Approved IMA 1967
Help on Locality: Locality: Kank, near Kutna Hora, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the Czech chemist, Antonin Bukovsky (1865-1950).
 

Bukovskyite Image

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Bukovskyite   Zykaite

Comments: Pale beige acicular crystals of bukovsk?ite with white zykaite.
Location: Christbescherung Mine, Gro?voigtsberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Bukovskyite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7615:1:0.7304
Help on Cell Dimensions: Cell Dimensions: a = 10.722, b = 14.079, c = 10.284, Z = 4; alpha = 93.5°, beta = 115.96°, gamma = 90.27° V = 1,393.16 Den(Calc)= 2.34
Help on Crystal System: Crystal System: TriclinicSpace Group: P1 or P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.2(1), 9.6(1), 3.9(0.7),
 

Physical Properties of Bukovskyite

Help on Cleavage: Cleavage: None
Help on Color: Color: Light yellow, Orange, Greenish gray.
Help on Density: Density: 2.34
Help on Fracture: Fracture: Earthy - Dull, clay-like fractures with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: yellowish white
 

Optical Properties of Bukovskyite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.192 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.192 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2574,KPDmeas= 0.2574,KC= 0.2159
Help on Optical Data: Optical Data: Biaxial (+), b=1.57-1.582, g=1.626-1.631,
 

Calculated Properties of Bukovskyite

Help on Electron Density: Electron Density:

relectron=2.33 gm/cc
note: rBukovskyite =2.34 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00558
Boson Index = 0.99442
Help on Photoelectric: Photoelectric:

PEBukovskyite = 17.10 barns/electron
U=PEBukovskyite x relectron= 39.88 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bukovskyite is Not Radioactive

 

Bukovskyite Classification

Help on  Dana Class: Dana Class: 43.5.1.2 (43)Compound Phosphates, etc.
  (43.5)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.5.1)Dana Group
 
43.5.1.1 Sarmientite Fe2(AsO4)(SO4)(OH)·5(H2O) P 21/c 2/m
 
43.5.1.2 Bukovskyite Fe2(AsO4)(SO4)(OH)·7(H2O) P1 or P1 Tri
 
43.5.1.3 Sanjuanite Al2(PO4)(SO4)(OH)·9(H2O) P1 or P1 Tri
Help on  Strunz Class: Strunz Class: VII/D.05-40 VII - Phosphates, Arsenates and Vanadates
  VII/D - Water-bearing phosphates with unfamiliar anions, cations of medium size: Cu, Zn, Mn, Al, Fe
  VII/D.05 - Pitticite - Zykaite series
 
VII/D.05-10 Pitticite Hydrousferricarsenatesulfate(Fe,AsO4,SO4,H2O) None
 
VII/D.05-20 Diadochite Fe2(PO4)(SO4)(OH)·6(H2O) P1 1
 
VII/D.05-30 Sarmientite Fe2(AsO4)(SO4)(OH)·5(H2O) P 21/c 2/m
 
VII/D.05-40 Bukovskyite Fe2(AsO4)(SO4)(OH)·7(H2O) P1 or P1 Tri
 
VII/D.05-50 Tooeleite Fe(8-2x)[(As(1-x),S(x))O4]6·5(H2O) Pbcm,Pbc21 Ortho
 
VII/D.05-60 Zykaite Fe4(AsO4)3(SO4)(OH)·15(H2O) Unk Ortho
 

Other Bukovskyite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Bukovskyite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Bukovskyite

Fe+++2(AsO4)(SO4)(OH)·7(H2O)
Dana No: 43.5.1.2 Strunz No: VII/D.05-40
Locality:

 

Notes:

 

 
   
 
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