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General Nolanite Information
Chemical Formula:	(V+++,Fe++,Fe+++,Ti)10O14(OH)2
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
Empirical Formula:	V3+6.9Fe3+1.6Fe2+0.5Ti0.6Al0.3O14(OH)2
Environment:	Hydrothermal uranium deposits.
IMA Status:	Valid Species (Pre-IMA) 1957
Locality:	Fish-Hook Bay, Lake Athabaska, and at the Ace mine, Beaverlodge Lake, Saskatchewan, Canada. Link to MinDat.org Location Data.
Name Origin:	Named for Thomas Brennan Nolan (1901-1992), formerly Director of the U. S. Geological Survey, Washington, D.C., USA.
Name Pronunciation:	Nolanite
Synonym:	ICSD 31215
	PDF 19-640
Nolanite Image
Images:	Nolanite Comments: Dark gray to black massive nolanite. Location: Fishhook Bay, Saskatchewan, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Nolanite Crystallography
Axial Ratios:	a:c = 1:1.58296
Cell Dimensions:	a = 5.846, c = 9.254, Z = 1; V = 273.89 Den(Calc)= 4.63
Crystal System:	Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc
X Ray Diffraction:	By Intensity(I/Io): 3.44(1), 2.49(0.9), 2.66(0.9),
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	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
Cleavage:	None
Color:	Black.
Density:	4.69
Diaphaneity:	Opaque
Fracture:	Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Habit:	Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Habit:	Hexagonal - Six-sided crystal shape in cross-section or habit.
Hardness:	5-5.5 - Apatite-Knife Blade
Luster:	Sub Metallic
Streak:	brownish black
Optical Properties of Nolanite
Dichroism (e):	dark brown.
Dichroism (w):	deep blue.
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
RL Anisotrophism:	Moderate, light to dark gray.
RL Color:	Dark gray to dark grayish violet.
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

Calculated Properties of Nolanite

Nolanite Classification

Other Nolanite Information

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