Stolzite Mineral Data

Stolzite Mineral Data +

General Stolzite Information

Chemical Formula:

PbWO4

Composition:

Molecular Weight = 455.05 gm

Lead 45.53 % Pb 49.05 % PbO

Tungsten 40.40 % W 50.95 % WO₃

Oxygen 14.06 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Pb(WO₄)

Environment:

Dimorphous with raspite. Froms a series with wulfenite.

IMA Status:

Valid Species (Pre-IMA) 1845

Locality:

Cinovec (Zinnwald), Krusne Hory (Erzgebirge), Cechy (Bohemia), Czech Republic. Link to MinDat.org Location Data.

Name Origin:

Named after Joseph Alexis Stolz (1803-1896) from Teplice, Czechoslovakia.

Synonym:

ICSD 75981

PDF 19-708

Stolzite Image

Images:

Stolzite

Comments: White stolzite crystals on matrix.
Location: Tuena mine, New South Wales, Australia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Stolzite Crystallography

Axial Ratios:

a:c = 1:2.20695

Cell Dimensions:

a = 5.46, c = 12.05, Z = 4; V = 359.23 Den(Calc)= 8.41

Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 4₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.25(1), 1.66(0.35), 2.024(0.35),

Forms:

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Forms: [ 0 1 1] [ 1 2 2] [ 1 1 1] [ 0 0 1]

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Crystal Structure:

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Chipaux R , Andre G , Cousson A , Journal of Alloys and Compounds , 325 (2001) p.91-94, Crystal structure of lead tungstate at 1.4 and 300 K, Sample: .Top. at T = 290 K, Note: Scheelite structure, Locality: synthetic

View Additional jPOWD Structure files for Stolzite
[1] [2] [3] [4]

Physical Properties of Stolzite

Cleavage:

[001] Indistinct, [011] Imperfect

Color:

Reddish brown, Yellowish brown, Brown, Greenish brown, Gray.

Density:

7.9 - 8.2, Average = 8.05

Diaphaniety:

Transparent to Translucent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2.5-3 - Finger Nail-Calcite

Luminescence:

Fluorescent.

Luster:

Adamantine - Resinous

Streak:

white

Optical Properties of Stolzite

Dichroism (e):

colorless.

Dichroism (w):

colorless.

Gladstone-Dale:

CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1463,KPDmeas= 0.1528,KC= 0.1524

Optical Data:

Uniaxial (-), e=2.19, w=2.27, bire=0.0800.

Calculated Properties of Stolzite

Electron Density:

r_electron=6.65 gm/cc
note: r_Stolzite=8.05 gm/cc.

Fermion Index

Fermion Index = 0.15839
Boson Index = 0.84161

Photoelectric:

PE_Stolzite=1,373.52 barns/electron
U=PE_Stolzite x r_electron=9,136.12 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Stolzite is Not Radioactive

Stolzite Classification

Dana Class:

48.1.3.2 (48)Anhydrous Molybdates and Tungstates

(48.1)where A XO4

(48.1.3)Dana Group

48.1.3.1 Wulfenite PbMoO4 I 4₁/a 4/m

48.1.3.2 Stolzite PbWO4 I 4₁/a 4/m

Strunz Class:

VI/G.01-40 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/G - Molybdates [MoO4]2- and wolframates [WO4]2-

VI/G.01 - Scheelite - Wulfenite series, (Powellite - Raspite)

VI/G.01-10 Powellite CaMoO4 I 4₁/a 4/m

VI/G.01-20 Scheelite CaWO4 I 4₁/a 4/m

VI/G.01-25 Paraniite-(Y) Ca2Y(AsO4)(WO4)2 I 4₁/a 4/m

VI/G.01-30 Wulfenite PbMoO4 I 4₁/a 4/m

VI/G.01-40 Stolzite PbWO4 I 4₁/a 4/m

VI/G.01-50 Raspite PbWO4 P 2/n 2/m

VI/G.01-60 Koechlinite Bi2MoO6 C mca 2/m 2/m 2/m

VI/G.01-70 Russellite Bi2WO6 P ca2₁ mm2

Other Stolzite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)

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Stolzite

PbWO4
Dana No: 48.1.3.2 Strunz No: VI/G.01-40
Locality:

Notes: