Mineralogy Database

Galileiite Mineral Data

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General Galileiite Information

Help on Chemical  Formula: Chemical Formula: NaFe++4(PO4)3
Help on Composition: Composition: Molecular Weight = 531.29 gm
   Sodium       4.33 %  Na    5.83 % Na2O
   Iron        42.05 %  Fe   54.09 % FeO
   Phosphorus  17.49 %  P    40.08 % P2O5
   Oxygen      36.14 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaFe2+4(PO4)3
Help on Environment: Environment: In troilite nodules found in meteorites.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: Meteorites Grant IIIB, in the Zuni Mountains, New Mexico, USA; El Sampal IIIA, Argentina: Mount Edith IIIB, western Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Galileo Galilei (1564-1642), Italian astronomer and physicist.
Help on Name Pronunciation: Name Pronunciation: Galileiite + Pronunciation Say GALILEIITE
Help on Synonym: Synonym: IMA1996-028

Galileiite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.78104
Help on Cell Dimensions: Cell Dimensions: a = 14.98, c = 41.66, Z = 35; V = 8,096.06 Den(Calc)= 3.81
Help on Crystal System: Crystal System: Trigonal - Rhombohedral H-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.71(1), 3.01(0.9), 4.13(0.8),

Physical Properties of Galileiite

Help on Cleavage: Cleavage: None
Help on Color: Color: Very pale amber brown.
Help on Density: Density: 3.91
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Waxy
Help on Streak: Streak: white

Optical Properties of Galileiite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.01 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.037 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1929,KPDmeas= 0.188,KC= 0.1861
Ncalc = 1.71 - 1.73
Help on Optical Data: Optical Data: Uniaxial (+), w=1.72, e=1.75, bire=0.0300.

Calculated Properties of Galileiite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.77 gm/cc
note: Specific Gravity of Galileiite =3.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0090872505
Boson Index = 0.9909127495
Help on Photoelectric: Photoelectric: PEGalileiite = 13.59 barns/electron
U=PEGalileiite x rElectron Density= 51.20 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Galileiite is Not Radioactive

Galileiite Classification

Help on  Dana Class: Dana Class: (38)Anhydrous Phosphates, etc
  (38.02)(A+ B++)5 (XO4)3
  (38.02.05)Fillowite Group Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3 Galileiite! NaFe4(PO4)3 R 3 3 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
Help on  Strunz Class: Strunz Class: 08.AC.50 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AC -With medium-sized and large cations
08.AC.50 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
08.AC.50 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
08.AC.50 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
08.AC.50 Galileiite! NaFe4(PO4)3 R 3 3
08.AC.50 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
08.AC.50 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri

Other Galileiite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.83,p185,1998) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Galileiite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Ask about Galileiite here :
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Dana No: Strunz No: 08.AC.50





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