Pauflerite Mineral Data

General Pauflerite Information

Chemical Formula:

VO(SO4)

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

Empirical Formula:

V⁴⁺_0.99S_1.01O₅

Environment:

Found in 1977 within fumaroles of the first cinder cone. New structure type.

IMA Status:

Approved IMA 2005 (Dana # Added)

Locality:

Tolbachik volcano, Kamchatka Peninsula, Russia Link to MinDat.org Location Data.

Name Origin:

Named for Peter Paufler (b. 1940), of the Technical University of Dresden, Germany.

Synonym:

IMA2005-004

Pauflerite Image

Images:

Pauflerite

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

Axial Ratios:

a:b:c =1.1777:1:1.1283

Cell Dimensions:

a = 7.389, b = 6.274, c = 7.079, Z = 4; V = 328.17 Den(Calc)= 3.30

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/I_o): 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

Cleavage:

None

Color:

Light green.

Density:

3.32

Diaphaneity:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

3-4 - Calcite-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Pauflerite

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

Optical Data:

Biaxial (+), a=1.731, b=1.778, g=1.845, bire=0.1140

Calculated Properties of Pauflerite

Electron Density:

Bulk Density (Electron Density)=3.20 gm/cc
note: Specific Gravity of Pauflerite =3.30 gm/cc.

Fermion Index:

Fermion Index = 0.0025020843
Boson Index = 0.9974979157

Photoelectric:

PE_Pauflerite= 7.09 barns/electron
U=PE_Pauflerite x rElectron Density= 22.69 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pauflerite is Not Radioactive

Pauflerite Classification

Dana Class:

28.04.07.01 (28)Anhydrous Acid and Sulfates

(28.04)with miscellaneous formulae

(28.04.07)Dana Group

28.04.07.01 Pauflerite! VO(SO4) P nma 2/m 2/m 2/m

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

References:

NAME( CanMin, v45:921) PHYS. PROP.(CanMin, v45:921) OPTIC PROP.(CanMin, v45:921)

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

Pauflerite

VO(SO4)
Dana No: 28.04.07.01 Strunz No: 07.BB.55
Locality:

Notes:

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