Mineralogy Database

Pauflerite Mineral Data

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General Pauflerite Information

Help on Chemical  Formula: Chemical Formula: VO(SO4)
Help on Composition: Composition: Molecular Weight = 162.82 gm
   Vanadium  30.97 %  V    50.43 % VO2
   Sulfur    19.89 %  S    49.67 % SO3
   Oxygen    49.13 %  O
            ______        ______ 
            100.00 %      100.10 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: V4+0.99S1.01O5
Help on Environment: Environment: Found in 1977 within fumaroles of the first cinder cone. New structure type.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Tolbachik volcano, Kamchatka Peninsula, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Peter Paufler (b. 1940), of the Technical University of Dresden, Germany.
Help on Synonym: Synonym: IMA2005-004

Pauflerite Image

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Comments: SEM image of small fragments of pauflerite.
Location: Tolbackik Volcano, Great Tobachik eruption (1984), Second Cone, Kanchatka, Russia. Scale: See Image.
© Diederik Visser

Pauflerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.1777:1:1.1283
Help on Cell Dimensions: Cell Dimensions: a = 7.389, b = 6.274, c = 7.079, Z = 4; V = 328.17 Den(Calc)= 3.30
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.28(1), 3.14(0.73), 3.54(0.31),5.11(0.27), 2.845(0.18), 4.7(0.18), 2.209(0.17), 2.237(0.17),

Physical Properties of Pauflerite

Help on Cleavage: Cleavage: None
Help on Color: Color: Light green.
Help on Density: Density: 3.32
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Pauflerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.174 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.169 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2378,KPDmeas= 0.2363,KC= 0.2861
Ncalc = 1.94 - 1.95
Help on Optical Data: Optical Data: Biaxial (+), a=1.731, b=1.778, g=1.845, bire=0.1140

Calculated Properties of Pauflerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.20 gm/cc
note: Specific Gravity of Pauflerite =3.30 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0025020843
Boson Index = 0.9974979157
Help on Photoelectric: Photoelectric: PEPauflerite = 7.09 barns/electron
U=PEPauflerite x rElectron Density= 22.69 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pauflerite is Not Radioactive

Pauflerite Classification

Help on  Dana Class: Dana Class: (28)Anhydrous Acid and Sulfates
  (28.04)with miscellaneous formulae
  (28.04.07)Dana Group Pauflerite! VO(SO4) P nma 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 07.BB.55 07 - SULFATES (SELENATES, TELLURATES)
  07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O
  07.BB -With medium-sized cations
07.BB.55 Pauflerite! VO(SO4) P nma 2/m 2/m 2/m

Other Pauflerite Information

Help on References: References: NAME( CanMin, v45:921) PHYS. PROP.(CanMin, v45:921) OPTIC PROP.(CanMin, v45:921)
Help on See Also: See Also: Links to other databases for Pauflerite :
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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Dana No: Strunz No: 07.BB.55





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