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Nolanite Mineral Data

  • ️Dave Barthelmy

General Nolanite Information

Help on Chemical Formula: Chemical Formula: (V+++,Fe++,Fe+++,Ti)10O14(OH)2 Help on Composition: Composition: Molecular Weight = 763.60 gm    Titanium   3.76 %  Ti    6.28 % TiO2    Aluminum   1.06 %  Al    2.00 % Al2O3    Vanadium  46.03 %  V    67.72 % V2O3    Iron      15.36 %  Fe    4.70 % FeO / 16.73 % Fe2O3    Hydrogen   0.26 %  H     2.36 % H2O    Oxygen    33.52 %  O             ______        ______              100.00 %       99.79 % = TOTAL OXIDE Help on Empirical Formula: Empirical Formula: V3+6.9Fe3+1.6Fe2+0.5Ti0.6Al0.3O14(OH)2 Help on Environment: Environment: Hydrothermal uranium deposits. Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1957 Help on Locality: Locality: Fish-Hook Bay, Lake Athabaska, and at the Ace mine, Beaverlodge Lake, Saskatchewan, Canada. Link to MinDat.org Location Data. Help on Name Origin: Name Origin: Named for Thomas Brennan Nolan (1901-1992), formerly Director of the U. S. Geological Survey, Washington, D.C., USA. Help on Name Pronunciation: Name Pronunciation: Nolanite Say NOLANITE Help on Synonym: Synonym: ICSD 31215   PDF 19-640  

Nolanite Image

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Nolanite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.58296 Help on Cell Dimensions: Cell Dimensions: a = 5.846, c = 9.254, Z = 1; V = 273.89 Den(Calc)= 4.63 Help on Crystal System: Crystal System: Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.44(1), 2.49(0.9), 2.66(0.9), Click Here for Large Nolanite Structure Window Crystal Structure:

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Gatehouse B M , Grey I E , Nickel E H , American Mineralogist , 68 (1983) p.833-839, The crystal chemistry of nolanite, (V,Fe,Ti,Al)10O14(OH)2, from Kalgoorlie,, Western Australia, sample: crystal # 1

View Additional jPOWD Structure files for Nolanite
[1]
 

Physical Properties of Nolanite

Help on Cleavage: Cleavage: None Help on Color: Color: Black. Help on Density: Density: 4.69 Help on Diaphaneity: Diaphaneity: Opaque Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form. Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit. Help on Hardness: Hardness: 5-5.5 - Apatite-Knife Blade Help on Luster: Luster: Sub Metallic Help on Streak: Streak: brownish black  

Optical Properties of Nolanite

Help on Dichroism (e): Dichroism (e): dark brown. Help on Dichroism (w): Dichroism (w): deep blue. Help on Optical Data: Optical Data: Uniaxial (?).   NCalc= 2.33 - from Gladstone-Dale relationship (KC = 0.2873) where Ncalc=Dcalc*KC+1
NCalc= 2.35 - from Gladstone-Dale relationship (KC = 0.2873) where Ncalc=Dmeas*KC+1 Help on RL Anisotrophism: RL Anisotrophism: Moderate, light to dark gray. Help on RL Color: RL Color: Dark gray to dark grayish violet. Help on Reflectivity Reflectivity Standardized Intensity (100%) Reflection Spectra of Nolanite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   11.00   12.70 

     546 nm   11.80   13.50 
 589 nm   12.30   14.00 
Help on Strunz Class: Strunz Class: 04.CB.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate