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Pingguite

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Big Photo

Blue Bell claims (Hard Luck claims), Baker, San Bernardino Co., California, USA
© Brent Thorne 2007

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Formula:
Bi
 
6
Te
4+
2
O
 
13
System:OrthorhombicColour:Yellow-green
Lustre:Adamantine, VitreousHardness:5½ - 6
Name:Named after its locality.
This page provides mineralogical data about Pingguite.

Classification of Pingguite

IMA status:Approved 1993
Strunz 8th edition ID:4/K.04-15
Nickel-Strunz 10th (pending) edition ID:4.JL.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
L : Tellurites with additional anions, without H2O
Dana 8th edition ID:34.5.4.1

34 : SELENITES, TELLURITES AND SULFITES
5 : A(X3O8)
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Type Occurrence of Pingguite

Type Locality:Yangjia Au deposit, Pinggu District, Beijing Municipality, China
Place of Conservation of Type Material:Geological Museum of China, Beijing, China
Geological Setting of type material:Oxidation zone of a gold deposit

Physical Properties of Pingguite

Lustre:Adamantine, Vitreous
Diaphaneity (Transparency):Translucent
Colour:Yellow-green
Streak:Pale yellow-green
Hardness (Mohs):5½ - 6
Hardness (Vickers):VHN50=449 - 572 kg/mm2
Tenacity:Brittle
Density (measured):8.44 g/cm3
Density (calculated):8.64 g/cm3

Crystallography of Pingguite

Crystal System:Orthorhombic
Cell Parameters:a = 5.689(1) Å, b = 10.791(1) Å, c = 5.308(1) Å
Ratio:a:b:c = 0.527 : 1 : 0.492
Unit Cell Volume:V 325.86 ų (Calculated from Unit Cell)
Z:1
Morphology:Granular aggregates

Optical Data of Pingguite

Type:Biaxial
RI values: nα = 2.000 nβ = 2.145
Maximum Birefringence:δ = 2.000

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:relatively weak

Chemical Properties of Pingguite

Formula:
Bi
 
6
Te
4+
2
O
 
13
Essential elements:Bi, O, Te
All elements listed in formula:Bi, O, Te
Empirical Formula:
Bi
 
6
Te
4+
2
O
 
13

Relationship of Pingguite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JL.05Rodalquilarite
H
 
3
Fe
 
2
(TeO
 
3
)
 
4
Cl
4.JL.10Mackayite
Fe
3+
 
(Te
4+
2
O
 
5
)(OH)
4.JL.15Mroseite
CaTe
4+
 
(CO
 
3
)O
 
2
4.JL.25Tlapallite
H
 
6
(Ca,Pb)
 
2
(Cu,Zn)
 
3
(TeO
 
3
)
 
4
(TeO
 
6
)(SO
 
4
)
4.JL.30Girdite
H
 
2
Pb
 
3
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)

Other Names for Pingguite

Synonyms:
IMA1993-019
Other Languages:
German:Pingguit
Simplified Chinese:平谷矿
Spanish:Pingguita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Pingguite

Reference List:

- +
Sun Zhifu, Luo Keding, Tan Falan, and Zhang Jingyi (1994): Pingguite - A new bismuth tellurite mineral. Acta Mineralogica Sinica 14(4), 315-321 (in Chinese, English abstract). - New Minerals (1997), New Minerals 1990-1994 (abstract).

American Mineralogist (1996), 81, 767.

Internet Links for Pingguite

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    • Localities for Pingguite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    China
     
    • Beijing Municipality
      • Pinggu District
    		Zhifu Sun, Keding Luo, Falan Tan, and Jingyi Zhang (1994): Acta Mineralogica Sinica 14(4), 315-321
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Rudawy Janowickie Mts
        • Czarnów
          • Rędziny
    		Parafiniuk J. 2003: Secondary bismuth and tellurium minerals from Rędziny (SW Poland). Mineralogia Polonica, vol. 34, no.2, 3-14
    USA
     
    • California
      • San Bernardino Co.
        • Baker
    		Collected by and in the collection of Brent Thorne. EDS analyzed by Bob Housley and XRD analyzed by Tony Kamph.
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