Mcauslanite Mineral Data

General Mcauslanite Information

Chemical Formula: HFe++3Al2(PO4)4F•18(H2O) Composition: Molecular Weight = 945.67 gm    Aluminum     5.71 %  Al   10.78 % Al₂O₃    Iron        17.72 %  Fe   22.79 % FeO    Phosphorus  13.10 %  P    30.02 % P₂O₅    Hydrogen     3.94 %  H    35.24 % H₂O    Oxygen      57.52 %  O    Fluorine     2.01 %  F     2.01 % F                  -   %   F    -0.85 % -O=F₂                   ______        ______                100.00 %      100.00 % = TOTAL OXIDE Empirical Formula: HFe²⁺₃Al₂(PO₄)₄F•18(H₂O) Environment: Complex supergene enrichment area of iron phosphates. IMA Status: Approved IMA 1988 Locality: East Kemptville tin mine, Yarmouth County, NS, Canada. Link to MinDat.org Location Data. Name Origin: Named for David A. McAuslan, exploration manager, Shell Canada Resources LTD., who discovered the locality. Name Pronunciation: Mcauslanite + Pronunciation Synonym: IMA1986-051  

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Mcauslanite Crystallography

Axial Ratios: a:b:c =0.8692:1:0.5954 Cell Dimensions: a = 10.055, b = 11.568, c = 6.888, Z = 1; alpha = 105.84°, beta = 93.66°, gamma = 106.47° V = 737.63 Den(Calc)= 2.13 Crystal System: Triclinic - PedialH-M Symbol (1) Space Group: P1 X Ray Diffraction: By Intensity(I/I_o): 4.96(1), 10.6(0.9), 9.53(0.85),  

Physical Properties of Mcauslanite

Cleavage: {110} Good Color: Colorless, Yellowish white. Density: 2.22 Diaphaneity: Translucent Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals. Habit: Bladed - Aggregates of thin lath-like crystals (e.g. kyanite). Habit: Fibrous - Crystals made up of fibers. Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) Hardness: 3.5 - Copper Penny Luster: Vitreous - Silky Streak: white  

Optical Properties of Mcauslanite

Gladstone-Dale: CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.246,KPDmeas= 0.2383,KC= 0.2409
Ncalc = 1.52 - 1.53 Optical Data: Biaxial (-), a=1.522, b=1.531, g=1.534, bire=0.0120, 2V(Calc)=58, 2V(Meas)=55-59.7.  

Calculated Properties of Mcauslanite

Electron Density: Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Mcauslanite =2.22 gm/cc.
Fermion Index: Fermion Index = 0.0040379517
Boson Index = 0.9959620483 Photoelectric: PE_Mcauslanite = 5.96 barns/electron
U=PE_Mcauslanite x rElectron Density= 13.48 barns/cc.
Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mcauslanite is Not Radioactive  

Mcauslanite Classification

Dana Class: 42.11.22.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen   (42.11)where (AB)4 (XO4)3 Zq · x(H2O)   (42.11.22)Dana Group  

42.11.22.01 Mcauslanite HFe3Al2(PO4)4F•18(H2O) P1 1

Strunz Class: 08.DB.60 08 - PHOSPHATES, ARSENATES, VANADATES   08.D - Phosphates, etc   08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1  

08.DB.60 Mcauslanite HFe3Al2(PO4)4F•18(H2O) P1 1

 

Other Mcauslanite Information

References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Am.Min.,Vol.75,p707,1990) See Also: Links to other databases for Mcauslanite :
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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