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Aheylite Mineral Data

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General Aheylite Information

Help on Chemical  Formula: Chemical Formula: (Fe++,Zn)Al6(PO4)4(OH)8•4(H2O)
Help on Composition: Composition: Molecular Weight = 806.08 gm
   Aluminum    20.08 %  Al   37.95 % Al2O3
   Zinc         3.24 %  Zn    4.04 % ZnO
   Iron         3.46 %  Fe    4.46 % FeO
   Phosphorus  15.37 %  P    35.22 % P2O5
   Hydrogen     2.06 %  H    18.44 % H2O
   Oxygen      55.77 %  O
              ______        ______ 
              100.00 %      100.10 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+0.5Zn0.4Al6(PO4)3.7(PO3OH)0.3(OH)8�4.1(H2O)
Help on Environment: Environment: Late stage hydrothermal mineral in a base-metal tin deposit.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Huanuni mine, Mina Flores Mountain, Huanuni district, Bolivia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Allen V. Heyl (1918-), economic geologist, U. S. Geological Survey.
Help on Name Pronunciation: Name Pronunciation: Aheylite Say AHEYLITE
 

Aheylite Image

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  Aheylite

Comments: Colorless radiating spray of aheylite crystals.
Location: Huanuni, Bolivia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Aheylite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7477:1:0.7707
Help on Cell Dimensions: Cell Dimensions: a = 7.4, b = 9.896, c = 7.627, Z = 1; alpha = 110.87°, beta = 115°, gamma = 69.96° V = 444.35 Den(Calc)= 3.01
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.67(1), 2.888(0.67), 6.146(0.43),
 

Physical Properties of Aheylite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Blue green.
Help on Density: Density: 2.85
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Hackly - Jagged, torn surfaces, (e.g. fractured metals).
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Botryoidal - "Grape-like" rounded forms (e.g.. malachite).
Help on Habit: Habit: Felted - Occurs as minute crystalling aggregates with the form of felt material.
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: greenish white
 

Optical Properties of Aheylite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2165,KPDmeas= 0.2211,KC= 0.2205
Ncalc = 1.63 - 1.64
Help on Optical Data: Optical Data: Biaxial (+), b=1.63
 

Calculated Properties of Aheylite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.86 gm/cc
note: Specific Gravity of Aheylite =2.85 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0023355915
Boson Index = 0.9976644085
Help on Photoelectric: Photoelectric: PEAheylite = 3.92 barns/electron
U=PEAheylite x rElectron Density= 11.20 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Aheylite is Not Radioactive
 

Aheylite Classification

Help on  Dana Class: Dana Class: 42.09.03.05 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.09)where (A)3 (XO4)2 Zq � x(H2O)
  (42.09.03)Turquoise Group
 
42.09.03.01 Turquoise CuAl6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.02 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
 
42.09.03.03 Faustite (Zn,Cu)Al6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.04 Chalcosiderite CuFe6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.05 Aheylite (Fe,Zn)Al6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.06 Planerite Al6(PO4)2(PO3OH)2(OH)8•4(H2O) P1 1
Help on  Strunz Class: Strunz Class: 08.DD.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DD -With only medium-sized cations, (OH, etc.):RO4 = 2:1
 
08.DD.15 Aheylite (Fe,Zn)Al6(PO4)4(OH)8•4(H2O) P1 1
 
08.DD.15 Chalcosiderite CuFe6(PO4)4(OH)8•4(H2O) P1 1
 
08.DD.15 Faustite (Zn,Cu)Al6(PO4)4(OH)8•4(H2O) P1 1
 
08.DD.15 Planerite Al6(PO4)2(PO3OH)2(OH)8•4(H2O) P1 1
 
08.DD.15 Turquoise CuAl6(PO4)4(OH)8•4(H2O) P1 1
 

Other Aheylite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(AntBidBlaNic4)
Help on See Also: See Also: Links to other databases for Aheylite :
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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Print or Cut-and-Paste your Aheylite Specimen Label here :

Aheylite

(Fe++,Zn)Al6(PO4)4(OH)8•4(H2O)
Dana No: 42.09.03.05 Strunz No: 08.DD.15
Locality:

 

Notes:

 

 
   
 


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