Augelite Mineral Data + Say AUGELITE

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General Augelite Information

Help on Chemical  Formula: Chemical Formula: Al2(PO4)(OH)3
Help on Composition: Composition: Molecular Weight = 199.96 gm
   Aluminum    26.99 %  Al   50.99 % Al2O3
   Phosphorus  15.49 %  P    35.49 % P2O5
   Hydrogen     1.51 %  H    13.51 % H2O
   Oxygen      56.01 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al2(PO4)(OH)3
Help on Environment: Environment: Formed by hydrogen metamorphism of phosphate-bearing rocks in peraluminous sediments; in some high-temperature hydrothermal ore deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1868
Help on Locality: Locality: From the Vastana mine, near Nasum, Skane, and at Kalsjoberg, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek for "luster," for its pearly luster on the cleavage.
Help on Synonym: Synonym: ICSD 24430
  PDF 34-151
 

Augelite Image

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Augelite

Comments: Apple green augelite with semi-transparent, well developed, brilliant crystals.
Location: Rapid Creek, Yukon, Canada. Scale: 3.5 x 2 cm.
© Fabre Minerals

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Augelite

Comments: Green to white, striated, blocky augelite crystal on matrix.
Location: Ortega mine, Ancash dept., Peru. Scale: Crystal length 2.3 cm.
© Tom Loomis / Dakota Matrix

Augelite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.6429:1:0.6334
Help on Cell Dimensions: Cell Dimensions: a = 13.124, b = 7.988, c = 5.06, Z = 4; beta = 112.25° V = 490.96 Den(Calc)= 2.71
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.338(1), 3.506(0.9), 4(0.8),
Help on Forms: Forms:

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Drag1 - Manipulate Crystal
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Help on Above

Forms: [ 1 1 1] [ 0 2 1] [ 0 1 0] [ 2 2 1] [ 2 0 1] [ 2 0 1] [ 1 1 0] [ 1 0 0] [ 0 0 1]

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Click Here for Large Augelite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

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Help on Above


Araki T , Finney J J , Zoltai T , American Mineralogist , 53 (1968) p.1096-1103, The crystal structure of augelite

 

Physical Properties of Augelite

Help on Cleavage: Cleavage: [110] Perfect, [201] Good
Help on Color: Color: Colorless, Yellow, Yellow green, White, Light blue.
Help on Density: Density: 2.696
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Hardness: Hardness: 4.5-5 - Near Apatite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Augelite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2137,KPDmeas= 0.2148,KC= 0.2165
Help on Optical Data: Optical Data: Biaxial (+), a=1.5736, b=1.5759, g=1.5877, bire=0.0141, 2V(Calc)=48, 2V(Meas)=50.816.
 

Calculated Properties of Augelite

Help on Electron Density: Electron Density:

relectron=2.70 gm/cc
note: rAugelite =2.70 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00027
Boson Index = 0.99973
Help on Photoelectric: Photoelectric:

PEAugelite = 1.56 barns/electron
U=PEAugelite x relectron= 4.20 barns/cc.

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

Augelite is Not Radioactive

 

Augelite Classification

Help on  Dana Class: Dana Class: 41.6.8.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.6)where (A)2 (XO4) Zq
  (41.6.8)Dana Group
 
41.6.8.1 Augelite Al2(PO4)(OH)3 C 2/m 2/m
Help on  Strunz Class: Strunz Class: VII/B.12-20 VII - Phosphates, Arsenates and Vanadates
  VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds
  VII/B.12 - Pseudomalachite group, Brazilianite - Viitaniemiite series
 
VII/B.12-10 Brazilianite NaAl3(PO4)2(OH)4 P 21/n 2/m
 
VII/B.12-20 Augelite Al2(PO4)(OH)3 C 2/m 2/m
 
VII/B.12-30 Viitaniemiite Na(Ca,Mn)Al(PO4)(F,OH)3 P 21,P 21/m Mono
 

Other Augelite Information

Help on References: References: NAME( AntBidBlaNic4) 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 Augelite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - MinMax(Deutsch)
12 - MinMax(English)
13 - Mineralienatlas (Deutsch)
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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Augelite

Al2(PO4)(OH)3
Dana No: 41.6.8.1 Strunz No: VII/B.12-20
Locality:

 

Notes:

 

 
   
 
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