Pittongite Mineral Data (original) (raw)

General Pittongite Information

Help on Chemical Formula: Chemical Formula:

Na0.22[(W,Fe+++)(O,OH)3•0.44H2O

Help on Composition: Composition:

Molecular Weight = 222.44 gm

Potassium 0.05 % K 0.06 % K2O

Sodium 2.27 % Na 3.07 % Na2O

Calcium 0.36 % Ca 0.50 % CaO

Aluminum 0.24 % Al 0.46 % Al2O3

Iron 4.02 % Fe 5.17 % FeO

Hydrogen 0.53 % H 4.78 % H2O

Tungsten 67.78 % W 85.47 % WO3

Oxygen 24.74 % O

______ ______

100.00 % 99.51 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na0.22(H2O)0.44Ca0.02K0.003W0.82Fe2+0.16Al0.02O2.7(OH)0.3

Help on Environment: Environment:

Formed by direct alteration of ferberite in the presence of acidic, oxidizing solutions containing sodiumNew structure type

Help on IMA Status: IMA Status:

Approved IMA 2006 (Dana # Added)

Help on Locality: Locality:

Mine dumps near the main shaft of a tungsten deposit 35 km west of Ballerat in the New England District of New South Wales, Australia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the former village of Pittong near the deposit.

Help on Synonym: Synonym:

IMA2005-034a

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Pittongite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:6.92972

Help on Cell Dimensions: Cell Dimensions:

a = 7.286, c = 50.49, Z = 36; V = 2,321.21 Den(Calc)= 5.73

Help on Crystal System: Crystal System:

Hexagonal - Ditrigonal DipyramidalH-M Symbol (6 m2) Space Group: P 6m2

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.153(1), 3.111(0.91), 1.823(0.76),1.578(0.64), 3.306(0.62), 2.45(0.59), 5.956(0.52), 1.192(0.44),

Physical Properties of Pittongite

Help on Color: Color:

Creamy yellow.

Help on Habit: Habit:

Aggregates - Made of numerous individual crystals or clusters.

Help on Hardness: Hardness:

2-3 - Gypsum-Calcite

Help on Luster: Luster:

Pearly

Help on Streak: Streak:

cream

Optical Properties of Pittongite

Help on Gladstone-Dale: Gladstone-Dale:

CI calc= -0.052 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1894,KC= 0.1801
Ncalc = 2.03

Help on Optical Data: Optical Data:

Uniaxial (-), w=2.085.

Calculated Properties of Pittongite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.98 gm/cc
note: Specific Gravity of Pittongite =5.73 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.09
Boson Index = 0.91

Help on Photoelectric: Photoelectric:

PEPittongite = 842.75 barns/electron
U=PEPittongite x relectron=4,197.63 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0.66 (Gamma Ray American Petroleum Institute Units)
Concentration of Pittongite per GRapi unit =150.99 (%)

Estimated Radioactivity from Pittongite - barely detectable

Pittongite Classification

Help on Dana Class: Dana Class:

49.02.06.01 (49)Basic and Hydrated Molybdates and Tungstates

(49.02)(Hydrated)

(49.02.06)Dana Group

49.02.06.01 Pittongite! Na0.22[(W,Fe)(O,OH)3•0.44H2O P 6m2 6 m2

Help on Strunz Class: Strunz Class:

04.DH.45 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra

04.DH.45 Pittongite! Na0.22[(W,Fe)(O,OH)3•0.44H2O P 6m2 6 m2

Other Pittongite Information

Help on References: References:

NAME( AmMin, v93:704) PHYS. PROP.(AmMin, v93:704) OPTIC PROP.(AmMin, v93:704)

Help on See Also: See Also:

Links to other databases for Pittongite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Pittongite Specimen Label here :

Pittongite

Na0.22[(W,Fe+++)(O,OH)3•0.44H2O
Dana No: 49.02.06.01 Strunz No: 04.DH.45
Locality:

Notes: