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Zincospiroffite

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Formula:
Zn
 
2
Te
4+
3
O
 
8
System:MonoclinicColour:Grey
Hardness:2½
Member of:Spiroffite Group
Name:Named as the zinc analogue of Spiroffite.


The zinc analogue of Spiroffite.

Classification of Zincospiroffite

IMA status:Approved 2002
Strunz 8th edition ID:4/K.13-05
Nickel-Strunz 10th (pending) edition ID:4.JK.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without H2O
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Type Occurrence of Zincospiroffite

Type Locality:Zhongshangou Mine, Dongping Au-Te ore field, Chongli Co., Zhangjiakou Prefecture, Hebei Province, China
General Appearance of Type Material:As micrometric films coating calaverite or in irregular aggregates replacing calaverite
Place of Conservation of Type Material:Catalogue number M10442 in the collection of the Geological Museum of China.
Geological Setting of type material:Secondary co-oxidation product in gold-bearing ore veins
Associated Minerals at type locality:
SphaleritePyriteHematiteGoldGalena
Calaverite

Physical Properties of Zincospiroffite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:Grey
Streak:Dark green
Hardness (Mohs):2½
Tenacity:Brittle
Fracture:Irregular/Uneven
Density (calculated):5.57 g/cm3

Crystallography of Zincospiroffite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 12.72Å, b = 5.15Å, c = 11.82Å
β = 99.2°
Ratio:a:b:c = 2.47 : 1 : 2.295
Unit Cell Volume:V 764.34 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
4.76 (30)
3.24 (25)
2.93 (100)

Chemical Properties of Zincospiroffite

Formula:
Zn
 
2
Te
4+
3
O
 
8
Essential elements:O, Te, Zn
All elements listed in formula:O, Te, Zn

Relationship of Zincospiroffite to other Species

Member of:Spiroffite Group
Other Members of Group:

- +
Spiroffite
(Mn,Zn)
 
2
Te
4+
3
O
 
8
Related Minerals - Nickel-Strunz Grouping):

- +
4.JK.05Winstanleyite
TiTe
4+
3
O
 
8
4.JK.05Walfordite
(Fe
3+
 
,Te
6+
 
)Te
4+
3
O
 
8
4.JK.10Spiroffite
(Mn,Zn)
 
2
Te
4+
3
O
 
8
4.JK.15Balyakinite
Cu(TeO
 
3
)
4.JK.20Rajite
Cu(Te
4+
2
O
 
5
)
4.JK.25Carlfriesite
CaTe
4+
2
Te
6+
 
O
 
8
4.JK.30Denningite
(Mn
2+
 
,Ca,Zn)Te
4+
2
O
 
5
4.JK.35Chekhovichite
Bi
 
2
Te
4+
4
O
 
11
4.JK.40Smirnite
Bi
 
2
Te
4+
 
O
 
5
4.JK.45Choloalite
(Cu,Sb)
 
3
(Pb,Ca)
 
3
(TeO
 
3
)
 
6
Cl
4.JK.50Fairbankite
Pb(TeO
 
3
)
4.JK.55Plumbotellurite
Pb(TeO
 
3
)
4.JK.60Magnolite
(Hg
+
2
)(Te
4+
 
O
 
3
)
4.JK.65Moctezumite
Pb(UO
 
2
)(TeO
 
3
)
 
2
4.JK.70Schmitterite
(UO
 
2
)(TeO
 
3
)
4.JK.75Cliffordite
(UO
 
2
)Te
4+
3
O
 
7

Other Names for Zincospiroffite

Synonyms:
IMA2002-047
Other Languages:
German:Zinkospiroffit

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 Zincospiroffite

Reference List:

- +
Zhang, P.-H. et al.(2004) Canadian Mineralogist: 42: 763-768.

Internet Links for Zincospiroffite

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  • Raman and XRD data at RRUFF project
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    • Localities for Zincospiroffite

    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
     
    • Hebei Province
      • Zhangjiakou Prefecture
        • Chongli Co.
          • Dongping Au-Te ore field
    		Peihua Zhang, Jinchu Zhu, Zhenhua Zhao, Xiangping Gu, and Jinfu Lin (2004): Canadian Mineralogist 42, 763-768.
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