Augelite Mineral Data

Augelite Mineral Data +

[Mineral Auctions] [Register] [Current Auctions] [Log In] [www.danweinrich.com]
Dan Weinrich Auctions
Specializing In Live Weekly Auctions Of Top Quality Mineral Specimens
The Place To Find Great Specimens At Great Prices!

General Augelite Information

Chemical Formula:

Al2(PO4)(OH)3

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

Empirical Formula:

Al₂(PO₄)(OH)₃

Environment:

Formed by hydrogen metamorphism of phosphate-bearing rocks in peraluminous sediments; in some high-temperature hydrothermal ore deposits.

IMA Status:

Valid Species (Pre-IMA) 1868

Locality:

From the Vastana mine, near Nasum, Skane, and at Kalsjoberg, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

From the Greek for "luster," for its pearly luster on the cleavage.

Synonym:

ICSD 24430

PDF 34-151

Augelite Image

Images:

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

Images:

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

Axial Ratios:

a:b:c =1.6429:1:0.6334

Cell Dimensions:

a = 13.124, b = 7.988, c = 5.06, Z = 4; beta = 112.25° V = 490.96 Den(Calc)= 2.71

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 3.338(1), 3.506(0.9), 4(0.8),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
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]

Warning: this large pop-up is very compute intensive and may not work well with some computers.

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

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

Physical Properties of Augelite

Cleavage:

[110] Perfect, [201] Good

Color:

Colorless, Yellow, Yellow green, White, Light blue.

Density:

2.696

Diaphaniety:

Transparent to Translucent

Hardness:

4.5-5 - Near Apatite

Luster:

Vitreous - Pearly

Streak:

white

Optical Properties of Augelite

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

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

Electron Density:

r_electron=2.70 gm/cc
note: r_Augelite=2.70 gm/cc.

Fermion Index

Fermion Index = 0.00027
Boson Index = 0.99973

Photoelectric:

PE_Augelite= 1.56 barns/electron
U=PE_Augelite x r_electron= 4.20 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Augelite is Not Radioactive

Augelite Classification

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

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

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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

Search for Augelite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Augelite :

AA Mineral Specimens

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

MineralsWeb Fine Minerals

The GeoZone

Wrights Rock Shop

Translate Augelite Mineral Data :

Ask about Augelite 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 Augelite Specimen Label here :

Augelite

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

Notes: