Felsobanyaite Mineral Data

General Felsobanyaite Information

Chemical Formula: Al4(SO4)(OH)10•5(H2O) 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 Empirical Formula: Al₄(SO₄)(OH)₁₀•5(H₂O) IMA Status: Valid Species (Pre-IMA) 1853 Locality: Baia Sprie, Maramures, Romania (formerly known as Felsobanya, in Hungary). Link to MinDat.org Location Data. Name Origin: Named for the locality. Name Pronunciation: Felsobanyaite + Pronunciation  

Felsobanyaite Image

Images:

Felsobanyaite Crystallography

Axial Ratios: a:c = 1:0.84376 Cell Dimensions: a = 22.556, c = 19.032, Z = 24; V = 8,385.70 Den(Calc)= 2.21 Crystal System: HexagonalSpace Group: Unk X Ray Diffraction: By Intensity(I/I_o): 4.64(1), 4.79(1), 2.27(0.5), Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Farkas L , Pertlik F , Acta Mineralogica Petrographica , 38 (1997) p.5-15, Crystal structure determinations of felsobanyaite and basaluminite,, Al4(SO4)(OH)10*4H2O, Locality: Felsobanya, Hungary

 

Physical Properties of Felsobanyaite

Cleavage: {001} Perfect, {100} Distinct, {010} Distinct Color: Colorless, Yellow, White. Density: 2.35 Diaphaneity: Transparent to Translucent Habit: Aggregates - Made of numerous individual crystals or clusters. Habit: Globular - Spherical, or nearly so, rounded forms (e.g. wavellite). Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) Hardness: 1.5 - Between Talc and Gypsum Luster: Vitreous - Pearly  

Optical Properties of Felsobanyaite

Gladstone-Dale: CI meas= 0.119 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.064 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2373,KPDmeas= 0.2232,KC= 0.2534
Ncalc = 1.56 - 1.6 Optical Data: Uniaxial (+), w=1.516, e=1.533, bire=0.0170.  

Calculated Properties of Felsobanyaite

Electron Density: Bulk Density (Electron Density)=2.29 gm/cc
note: Specific Gravity of Felsobanyaite =2.21 gm/cc.
Fermion Index: Fermion Index = 0.0008390436
Boson Index = 0.9991609564 Photoelectric: PE_{Felsobanyaite} = 1.20 barns/electron
U=PE_{Felsobanyaite} x rElectron Density= 2.74 barns/cc.
Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Felsobanyaite is Not Radioactive  

Felsobanyaite Classification

Dana Class: 31.04.04.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen   (31.04)where (A+ B++)4 (XO4) Zq·x(H2O)   (31.04.04)Dana Group  

31.04.04.01 Felsobanyaite Al4(SO4)(OH)10•5(H2O) Unk Hex

Strunz Class: 07.DD.05 07 - SULFATES (SELENATES, TELLURATES)   07.D - Sulfates (selenates, etc.) with additional anions, with H2O   07.DD -With only medium-sized cations; sheets of edge-sharing octahedra  

07.DD.05 Basaluminite? Al4(SO4)(OH)10•5(H2O) P 2₁ 2

 

07.DD.05 Felsobanyaite Al4(SO4)(OH)10•5(H2O) Unk Hex

 

Other Felsobanyaite Information

References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) See Also: Links to other databases for Felsobanyaite :
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
13 - The Felsõbányaite¹ Page
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Felsobanyaite :

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

Ask about Felsobanyaite 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 Felsobanyaite Specimen Label here :