Zykaite Mineral Data + Say ZYKAITE

B and L Minerals
[Current Minerals] [Order Status] [Policies] [e-Bay Items]
B & L Minerals, Fine Mineral specimens for sale for collectors of all levels

General Zykaite Information

Help on Chemical  Formula: Chemical Formula: Fe+++4(AsO4)3(SO4)(OH)·15(H2O)
Help on Composition: Composition: Molecular Weight = 1,023.45 gm
   Iron      21.83 %  Fe   31.21 % Fe2O3
   Arsenic   21.96 %  As   33.69 % As2O5
   Hydrogen   3.05 %  H    27.28 % H2O
   Sulfur     3.13 %  S     7.82 % SO3
   Oxygen    50.03 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+4(AsO4)3(SO4)(OH)·15(H2O)
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Kank, near Kutna Hora, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vaclav Zyka (1926-), Czech geochemist.
 

Zykaite Image

Click Here for Larger Zykaite Image in a New Browser Window Images:
Click Here for Larger Zykaite Image

Zykaite   Bukovskyite

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

Click Here for Larger Zykaite Image in a New Browser Window Images:
Click Here for Larger Zykaite Image

Zykaite

Comments: Round aggregates of Zykaite.
Location: Reiche Zeche Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Specimen size 37 mm.
© Thomas Witzke / Abraxas-Verlag

Zykaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.965:1:5.2596
Help on Cell Dimensions: Cell Dimensions: a = 20.853, b = 7.033, c = 36.991, Z = 8; V = 5,425.07 Den(Calc)= 2.51
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.4(1), 10.6(0.7), 6.92(0.4),
 

Physical Properties of Zykaite

Help on Color: Color: Greenish white, Gray white.
Help on Density: Density: 2.5
Help on Diaphaniety: Diaphaniety: Translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white
 

Optical Properties of Zykaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2541,KPDmeas= 0.2551,KC= 0.2595
Help on Optical Data: Optical Data: Biaxial (-), a=1.632, b=1.635-1.636, g=1.646, bire=0.0140, 2V(Calc)=56-66, 2V(Meas)=60.
 

Calculated Properties of Zykaite

Help on Electron Density: Electron Density:

relectron=2.47 gm/cc
note: rZykaite =2.50 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.0051
Boson Index = 0.9949
Help on Photoelectric: Photoelectric:

PEZykaite = 21.10 barns/electron
U=PEZykaite x relectron= 52.16 barns/cc.

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

Zykaite is Not Radioactive

 

Zykaite Classification

Help on  Dana Class: Dana Class: 43.5.3.2 (43)Compound Phosphates, etc.
  (43.5)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.5.3)Dana Group
 
43.5.3.1 Pitticite Hydrousferricarsenatesulfate(Fe,AsO4,SO4,H2O) None
 
43.5.3.2 Zykaite Fe4(AsO4)3(SO4)(OH)·15(H2O) Unk Ortho
Help on  Strunz Class: Strunz Class: VII/D.05-60 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 Zykaite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Zykaite :
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

Search for Zykaite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Zykaite :

AA Mineral Specimens
B & L Fine Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
Heliodor
John Betts Fine Minerals
Mason's Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz
T G Fine Minerals
Wrights Rock Shop

Translate Zykaite Mineral Data :

Ask about Zykaite 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 Español

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

Zykaite

Fe+++4(AsO4)3(SO4)(OH)·15(H2O)
Dana No: 43.5.3.2 Strunz No: VII/D.05-60
Locality:

 

Notes:

 

 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links