Hydrobasaluminite Mineral Data

General Hydrobasaluminite Information

Chemical Formula:

Al4(SO4)(OH)10•12-36(H2O)

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

Empirical Formula:

Al₄(SO₄)(OH)₁₀•15(H₂O)

Environment:

Precursor mineral to basaluminite.

IMA Status:

Valid Species (Pre-IMA) 1948

Locality:

Irchester and elsewhere in England. Link to MinDat.org Location Data.

Name Origin:

Named for the composition and relation to basaluminite.

Name Pronunciation:

Hydrobasaluminite + Pronunciation

Synonym:

Winebergite (discredited)

Search for Hydrobasaluminite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Hydrobasaluminite Crystallography

Axial Ratios:

a:b:c =1.4921:1:1.3649

Cell Dimensions:

a = 14.911, b = 9.993, c = 13.64, Z = 4; beta = 112.24° V = 1,881.24 Den(Calc)= 2.27

Crystal System:

MonoclinicSpace Group: Unk.

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 12.6(1), 5.29(0.7), 6.18(0.7),

Physical Properties of Hydrobasaluminite

Color:

White.

Density:

2.275

Fracture:

Elastic - Fragments which spring back after bending.

Habit:

Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).

Luster:

Earthy (Dull)

Streak:

white

Optical Properties of Hydrobasaluminite

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

Electron Density:

Bulk Density (Electron Density)=2.40 gm/cc
note: Specific Gravity of Hydrobasaluminite =2.27 gm/cc.

Fermion Index:

Fermion Index = 0.0007283251
Boson Index = 0.9992716749

Photoelectric:

PE_{Hydrobasaluminite}= 0.95 barns/electron
U=PE_{Hydrobasaluminite} x rElectron Density= 2.28 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hydrobasaluminite is Not Radioactive

Hydrobasaluminite Classification

Dana Class:

31.04.06.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.04)where (A+ B++)4 (XO4) Zq·x(H2O)

(31.04.06)Dana Group

31.04.06.01 Hydrobasaluminite Al4(SO4)(OH)10•12-36(H2O) Unk. Mono

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

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

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

Search for Hydrobasaluminite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Hydrobasaluminite :

A Bijoux Google Search for Hydrobasaluminite
Adam's Minerals Google Search for Hydrobasaluminite
Cape Minerals Google Search for Hydrobasaluminite
Dakota Matrix Minerals Google Search for Hydrobasaluminite
Excalibur Mineral Corp. Google Search for Hydrobasaluminite
Exceptional Minerals Google Search for Hydrobasaluminite
John Betts Fine Minerals Search for Hydrobasaluminite
McDougall Minerals Google Search for Hydrobasaluminite
Mineral News Website Link
Rock and Mineral Shows Google Search for Hydrobasaluminite
Weinrich Minerals, Inc. Google Search for Hydrobasaluminite

Ask about Hydrobasaluminite 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 Hydrobasaluminite Specimen Label here :

Hydrobasaluminite

Al4(SO4)(OH)10•12-36(H2O)
Dana No: 31.04.06.01 Strunz No: 07.DE.60
Locality:

Notes: