Mineralogy Database

Kuzelite Mineral Data

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General Kuzelite Information

Help on Chemical  Formula: Chemical Formula: Ca4Al2.4(OH)12.8(SO4)•6(H2O)
Help on Composition: Composition: Molecular Weight = 622.52 gm
   Calcium   25.75 %  Ca   36.03 % CaO
   Aluminum   8.67 %  Al   16.38 % Al2O3
   Hydrogen   3.89 %  H    34.73 % H2O
   Sulfur     5.15 %  S    12.86 % SO3
   Oxygen    56.54 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4Al2(OH)12(SO4)•6(H2O)
Help on Environment: Environment: In carbonaceous xenoliths in a Tertiary basalt. Related to hydrocalumite.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: The Zeilberg quarry, Marolsweisach, northern Bavaria, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Prof. Hans Jurgen Kuzel of Erlangen, Germany. who first synthesized th compound.
Help on Name Pronunciation: Name Pronunciation: Kuzelite Say KUZELITE
Help on Synonym: Synonym: ICSD 100138
  PDF 45-158

Kuzelite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:9.31597
Help on Cell Dimensions: Cell Dimensions: a = 5.76, c = 53.66, Z = 3; V = 1,541.79 Den(Calc)= 2.01
Help on Crystal System: Crystal System: Trigonal - Pyramidal H-M Symbol (3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.972(1), 4.476(0.7), 2.362(0.4),

Physical Properties of Kuzelite

Help on Color: Color: White.
Help on Density: Density: 1.99 - 2.02, Average = 2
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Kuzelite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.015 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.246,KPDmeas= 0.2466,KC= 0.2504
Ncalc = 1.5 - 1.51
Help on Optical Data: Optical Data: Uniaxial (-), e=1.485, w=1.504, bire=0.0190.

Calculated Properties of Kuzelite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.07 gm/cc
note: Specific Gravity of Kuzelite =2.01 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0010112125
Boson Index = 0.9989887875
Help on Photoelectric: Photoelectric: PEKuzelite = 3.72 barns/electron
U=PEKuzelite x rElectron Density= 7.71 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kuzelite is Not Radioactive

Kuzelite Classification

Help on  Dana Class: Dana Class: (06)Hydroxides and Oxides Containing Hydroxyl
  (06.04)containing multiple cations
  (06.04.12)Dana Group Kuzelite! Ca4Al2.4(OH)12.8(SO4)•6(H2O) R 3 3
Help on  Strunz Class: Strunz Class: 04.FL.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FL -Hydroxides with H2O � (OH); sheets of edge-sharing octahedra
04.FL.15 Kuzelite! Ca4Al2.4(OH)12.8(SO4)•6(H2O) R 3 3

Other Kuzelite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Min.Mag.,Vol.61,p735,1997) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Kuzelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: Strunz No: 04.FL.15





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