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Hydrobasaluminite Mineral Data

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General Hydrobasaluminite Information

Help on Chemical  Formula: Chemical Formula: Al4(SO4)(OH)10•12-36(H2O)
Help on Composition: Composition: Molecular Weight = 644.29 gm
   Aluminum  16.75 %  Al   31.65 % Al2O3
   Hydrogen   6.26 %  H    55.92 % H2O
   Sulfur     4.98 %  S    12.43 % SO3
   Oxygen    72.01 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al4(SO4)(OH)10•15(H2O)
Help on Environment: Environment: Precursor mineral to basaluminite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1948
Help on Locality: Locality: Irchester and elsewhere in England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition and relation to basaluminite.
Help on Name Pronunciation: Name Pronunciation: Hydrobasaluminite + Pronunciation Say HYDROBASALUMINITE
Help on Synonym: Synonym: Winebergite (discredited)

Hydrobasaluminite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4921:1:1.3649
Help on Cell Dimensions: Cell Dimensions: a = 14.911, b = 9.993, c = 13.64, Z = 4; beta = 112.24° V = 1,881.24 Den(Calc)= 2.27
Help on Crystal System: Crystal System: Monoclinic Space Group: Unk.
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 12.6(1), 5.29(0.7), 6.18(0.7),

Physical Properties of Hydrobasaluminite

Help on Color: Color: White.
Help on Density: Density: 2.275
Help on Fracture: Fracture: Elastic - Fragments which spring back after bending.
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white

Optical Properties of Hydrobasaluminite

Help on Optical Data: Optical Data: NCalc= 1.63 - from Gladstone-Dale relationship (KC = 0.2776) where Ncalc=Dcalc*KC+1
NCalc= 1.63 - from Gladstone-Dale relationship (KC = 0.2776) where Ncalc=Dmeas*KC+1

Calculated Properties of Hydrobasaluminite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.40 gm/cc
note: Specific Gravity of Hydrobasaluminite =2.27 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0007283251
Boson Index = 0.9992716749
Help on Photoelectric: Photoelectric: PEHydrobasaluminite = 0.95 barns/electron
U=PEHydrobasaluminite x rElectron Density= 2.28 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hydrobasaluminite is Not Radioactive

Hydrobasaluminite Classification

Help on  Dana Class: Dana Class: (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.04)where (A+ B++)4 (XO4) Zq�x(H2O)
  (31.04.06)Dana Group Hydrobasaluminite Al4(SO4)(OH)10•12-36(H2O) Unk. Mono
Help on  Strunz Class: Strunz Class: 07.DE.60 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DE -With only medium-sized cations; unclassified
07.DE.60 Hydrobasaluminite Al4(SO4)(OH)10•12-36(H2O) Unk. Mono

Other Hydrobasaluminite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Hydrobasaluminite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 07.DE.60





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