Basaluminite Mineral Data + Say BASALUMINITE


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General Basaluminite Information

Help on Chemical  Formula: Chemical Formula: Al4(SO4)(OH)10·5(H2O)
Help on Composition: Composition: Molecular Weight = 464.14 gm
   Aluminum  23.25 %  Al   43.94 % Al2O3
   Hydrogen   4.34 %  H    38.81 % H2O
   Sulfur     6.91 %  S    17.25 % SO3
   Oxygen    65.50 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al4(SO4)(OH)10·5(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1948
Help on Locality: Locality: Link to MinDat.org Location Data.
 

Basaluminite Image

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Basaluminite

Comments: Clear, radial sprays of basaluminite crystals.
Location: Lavender Pit, Bisbee, Cochise County, Arizona, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Basaluminite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2948:1:1.1059
Help on Cell Dimensions: Cell Dimensions: a = 12.954, b = 10.004, c = 11.064, Z = 4; beta = 104.1° V = 1,390.61 Den(Calc)= 2.22
Help on Crystal System: Crystal System: Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.4(1), 4.68(0.8), 3.68(0.7),
 

Physical Properties of Basaluminite

Help on Color: Color: White, Yellow, Orange, Brown.
Help on Density: Density: 2.12
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 1.5 - Between Talc and Gypsum
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white
 

Optical Properties of Basaluminite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.038 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.081 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2329,KPDmeas= 0.2439,KC= 0.2534
Help on Optical Data: Optical Data: Uniaxial (+), w=1.515-1.519, e=1.515-1.519, bire=0.0000.
 

Calculated Properties of Basaluminite

Help on Electron Density: Electron Density:

relectron=2.19 gm/cc
note: rBasaluminite =2.12 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00083
Boson Index = 0.99917
Help on Photoelectric: Photoelectric:

PEBasaluminite = 1.20 barns/electron
U=PEBasaluminite x relectron= 2.62 barns/cc.

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

Basaluminite is Not Radioactive

 

Basaluminite Classification

Help on  Dana Class: Dana Class: 31.4.5.1 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.4)where (A+ B++)4 (XO4) Zq·x(H2O)
  (31.4.5)Dana Group
 
31.4.5.1 Basaluminite Al4(SO4)(OH)10·5(H2O) P 21 2
Help on  Strunz Class: Strunz Class: VI/D.06-50 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size
  VI/D.06 - Aluminite series, Jurbanite - Zaherite
 
VI/D.06-10 Jurbanite Al(SO4)(OH)·5(H2O) P 21/n 2/m
 
VI/D.06-20 Khademite Al(SO4)F·5(H2O) Pcab 2/m 2/m 2/m
 
VI/D.06-20* Rostite AlSO4(OH,F)·5(H2O) Pcba 2/m 2/m 2/m
 
VI/D.06-30 Meta-aluminite Al2(SO4)(OH)4·5(H2O) P 21/c ? 2/m
 
VI/D.06-40 Aluminite Al2(SO4)(OH)4·7(H2O) P 21/c 2/m
 
VI/D.06-50 Basaluminite Al4(SO4)(OH)10·5(H2O) P 21 2
 
VI/D.06-60 Felsobanyaite Al4(SO4)(OH)10·5(H2O) Unk Hex
 
VI/D.06-70 Hydrobasaluminite Al4(SO4)(OH)10·12-36(H2O) Unk. Mono
 
VI/D.06-80 Zaherite Al12(SO4)5(OH)26·20H20 P1 or P1 Tri
 

Other Basaluminite Information

Help on References: References: 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 Basaluminite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Basaluminite

Al4(SO4)(OH)10·5(H2O)
Dana No: 31.4.5.1 Strunz No: VI/D.06-50
Locality:

 

Notes:

 

 
   
 
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