Augelite Mineral Data +

Mason's Minerals

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
X Ray Diffraction:	By Intensity(I/Io): 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:	relectron=2.70 gm/cc note: rAugelite =2.70 gm/cc.
Fermion Index	Fermion Index = 0.00027 Boson Index = 0.99973
Photoelectric:	PEAugelite = 1.56 barns/electron U=PEAugelite x relectron= 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 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris Search for Augelite using:   Web webmineral.com [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 e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals 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: