Kraisslite Mineral Data + Say KRAISSLITE

Greenside Minerals

General Kraisslite Information

Help on Chemical  Formula: Chemical Formula: (Mn++,Mg)24Zn3Fe+++(As+++O3)2(As+++++O4)3(SiO4)6(OH)18
Help on Composition: Composition: Molecular Weight = 3,019.54 gm
   Magnesium   1.53 %  Mg    2.54 % MgO
   Manganese  40.03 %  Mn   51.68 % MnO
   Zinc        6.93 %  Zn    8.63 % ZnO
   Iron        1.29 %  Fe    1.85 % Fe2O3
   Silicon     5.95 %  Si   12.74 % SiO2
   Arsenic    11.66 %  As    6.55 % As2O3 / 10.28 % As2O5
   Hydrogen    0.60 %  H     5.37 % H2O
   Oxygen     32.00 %  O
             ______        ______ 
             100.00 %       99.63 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+22Mg1.9Zn3.2Fe3+0.7(AsO3)2(AsO4)2.7(SiO4)6.4(OH)18
Help on Environment: Environment: Secondary mineral in the zincite zone of a metamorphosed stratiform zinc deposit.
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Frederick Kraissl, Jr. (1899-1986) and Alice L. Kraissl (1905-1986), of Hackensack, New Jersey.
 

Kraisslite Image

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Kraisslite

Comments: Yellow crystalline kraisslite in calcite.
Location: Sterling Mine, Ogdensburg, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kraisslite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:5.33819
Help on Cell Dimensions: Cell Dimensions: a = 8.22, c = 43.88, Z = 2; V = 2,567.68 Den(Calc)= 3.91
Help on Crystal System: Crystal System: Hexagonal - TrapezohedralH-M Symbol (6 2 2) Space Group: P 6322
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.74(1), 2.194(0.55), 2.437(0.55),
 

Physical Properties of Kraisslite

Help on Cleavage: Cleavage: [0001] Perfect
Help on Color: Color: Copper brown, Dark copper brown.
Help on Density: Density: 3.876
Help on Diaphaniety: Diaphaniety: Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Compact - Occurs as a compact mass.
Help on Habit: Habit: Foliated - Two dimensional platy forms.
Help on Habit: Habit: Scaly - Morphology like fish scales.
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: golden brown
 

Optical Properties of Kraisslite

Help on Optical Data: Optical Data: Uniaxial (+), e=1.805.
 

Calculated Properties of Kraisslite

Help on Electron Density: Electron Density:

relectron=3.71 gm/cc
note: rKraisslite =3.91 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00757
Boson Index = 0.99243
Help on Photoelectric: Photoelectric:

PEKraisslite = 22.53 barns/electron
U=PEKraisslite x relectron= 83.62 barns/cc.

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

Kraisslite is Not Radioactive

 

Kraisslite Classification

Help on  Dana Class: Dana Class: 43.4.10.1 (43)Compound Phosphates, etc.
  (43.4)(Anhydrous Compound Anions With Hydroxyl or Halogen)
  (43.4.10)Dana Group
 
43.4.10.1 Kraisslite (Mn,Mg)24Zn3Fe(AsO3)2(AsO4)3(SiO4)6(OH)18 P 6322 6 2 2
 
43.4.10.2 Ekatite! (Fe,Fe,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2 P 63mc 6mm
Help on  Strunz Class: Strunz Class: VIII/B.11-30 VIII - Silicates
  VIII/B - Nesosubsilicates, with anions unfamiliar to tetraheders, cations of octahedral and tetrahedral orientation [4/6]
  VIII/B.11 - Dixenite - Kraisslite series
 
VIII/B.11-10 Dixenite CuMn14Fe(AsO3)5(SiO4)2(AsO4)(OH)6 R 3 3
 
VIII/B.11-15 Turtmannite! (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20x R 3c 3 2/m
 
VIII/B.11-20 Mcgovernite Mn9Mg4Zn2As2Si2O17(OH)14 R 3c 3 2/m
 
VIII/B.11-30 Kraisslite (Mn,Mg)24Zn3Fe(AsO3)2(AsO4)3(SiO4)6(OH)18 P 6322 6 2 2
 
VIII/B.11-40 Asbecasite Ca3(Ti,Sn)As6Si2Be2O20 P 3c 3m
 

Other Kraisslite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Kraisslite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 - Franklin Minerals(Dunn) 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 -École des Mines de Paris

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Kraisslite

(Mn++,Mg)24Zn3Fe+++(As+++O3)2(As+++++O4)3(SiO4)6(OH)18
Dana No: 43.4.10.1 Strunz No: VIII/B.11-30
Locality:

 

Notes:

 

 
   
 
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