Dugganite Mineral Data

Dugganite Mineral Data +

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General Dugganite Information

Chemical Formula:

Pb3Zn3Te(As,V,Si)2(O,OH)14

Composition:

Molecular Weight = 1,302.29 gm

Vanadium 2.35 % V 4.19 % V₂O₅

Zinc 15.06 % Zn 18.75 % ZnO

Silicon 0.65 % Si 1.38 % SiO₂

Tellurium 9.80 % Te 12.26 % TeO₂

Arsenic 6.90 % As 9.12 % As₂O₃

Hydrogen 0.31 % H 2.77 % H₂O

Lead 47.73 % Pb 51.42 % PbO

Oxygen 17.20 % O

______ ______

100.00 % 99.88 % = TOTAL OXIDE

Empirical Formula:

Pb₃Zn₃TeAs_1.2V⁵⁺_0.6Si_0.3O₁₀(OH)₄

Environment:

Rare secondary mineral in the oxidize zone of telluide-bearing depoists

IMA Status:

Approved IMA 1978

Locality:

Emerald mine, Tombstone, Cochise County, Arizona, USA Link to MinDat.org Location Data.

Name Origin:

Named after Marjorie Duggan, analytical chemist, in reference to her discovery of Te6+ [hexavalent tellurium] in nature.

Synonym:

ICSD 85574

PDF 29-1429

Dugganite Image

Images:

Dugganite

Comments: Green crystalline aggregate of dugganite.
Location: Tombstone, Cochise County, Arizona, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Dugganite Crystallography

Axial Ratios:

a:c = 1:0.61473

Cell Dimensions:

a = 8.472, c = 5.208, Z = 1; V = 323.72 Den(Calc)= 6.68

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6/mmm

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

By Intensity(I/I_o): 3.284(1), 2.997(0.8), 2.446(0.6),

Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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H - Help Screen
I - Data Info
A - Atoms On/Off
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Lam A E , Groat L A , Ercit T S , The Canadian Mineralogist , 36 (1998) p.823-830, The crystal structure of dugganite, Pb3Zn3TeAs2O14

Physical Properties of Dugganite

Cleavage:

[1120] Indistinct

Color:

Colorless, Green, White.

Density:

6.33

Diaphaniety:

Transparent

Fracture:

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

Hardness:

3 - Calcite

Luster:

Adamantine

Streak:

white

Optical Properties of Dugganite

Gladstone-Dale:

CI meas= 0.1 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.147 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1455,KPDmeas= 0.1536,KC= 0.1706

Optical Data:

Uniaxial (-), e=1.967, w=1.977, bire=0.0100.

Calculated Properties of Dugganite

Electron Density:

r_electron=5.46 gm/cc
note: r_Dugganite=6.33 gm/cc.

Fermion Index

Fermion Index = 0.11993
Boson Index = 0.88007

Photoelectric:

PE_Dugganite= 898.46 barns/electron
U=PE_Dugganite x r_electron=4,905.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Dugganite is Not Radioactive

Dugganite Classification

Dana Class:

33.3.5.3 (33)Selenates and Tellurates

(33.3)with other anion groups

(33.3.5)Pb, Zn Tellurates

33.3.5.1 Cheremnykhite Zn3Pb3TeO6(VO4)2 C mmm,C 222,Cm2m,C mm2 Ortho

33.3.5.2 Kuksite Pb3Zn3TeO6(PO4)2 C mmm 2/m 2/m 2/m

33.3.5.3 Dugganite Pb3Zn3Te(As,V,Si)2(O,OH)14 P 6/mmm 6/m 2/m 2/m

Strunz Class:

IV/K.16-10 IV - Oxides

IV/K - Complex Tellurides with [TeO6]6-, [TeO3]2- and [TeO4]2- groups

IV/K.16 - Dugganite - Tlalocite

IV/K.16-05 Juabite! (Ca,Fe)Cu10(TeO3)4(AsO4)4(OH)2·4(H2O) P1 1

IV/K.16-10 Dugganite Pb3Zn3Te(As,V,Si)2(O,OH)14 P 6/mmm 6/m 2/m 2/m

IV/K.16-12 Kuksite Pb3Zn3TeO6(PO4)2 C mmm 2/m 2/m 2/m

IV/K.16-15 Cheremnykhite Zn3Pb3TeO6(VO4)2 C mmm,C 222,Cm2m,C mm2 Ortho

IV/K.16-20 Tlalocite Cu10Zn6(TeO3)(TeO4)2Cl(OH)25·27(H2O) Unk. Ortho

Other Dugganite Information

References:

NAME( Enc. Min. Vol 2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Dugganite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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

Dugganite

Pb3Zn3Te(As,V,Si)2(O,OH)14
Dana No: 33.3.5.3 Strunz No: IV/K.16-10
Locality:

Notes: