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Chenguodaite

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Formula:
Ag9Fe3+Te2S4
System:
Orthorhombic
Colour:
dark gray
Hardness:
2 - 3
Name:
Named for late Prof. Chen Guoda (1912-2004), Chinese geologist and founder of Diwa-Geodepression theory of tectonics
This page provides mineralogical data about Chenguodaite.

Classification of Chenguodaite

Approved
Approval Year:
2005
2.BA.60

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au
2.16.28.

2 : SULFIDES
16 : Miscellaneous
mindat.org URL:
http://www.mindat.org/min-28953.html
Please feel free to link to this page.

Type Occurrence of Chenguodaite

General Appearance of Type Material:
xenomorphic rounded or irregular shapes with the grain size 5―70 μm
Place of Conservation of Type Material:
Chinese Geological Museum, the catalogue number is M10487
Geological Setting of Type Material:
hydrothermal deposit
Associated Minerals at Type Locality:

Physical Properties of Chenguodaite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
dark gray
Hardness (Mohs):
2 - 3
Parting:
uneven
Density:
6.85 g/cm3 (Calculated)

Crystallography of Chenguodaite

Crystal System:
Orthorhombic
Cell Parameters:
a = 12.769(2) Å, b = 14.814(2) Å, c = 16.233(1) Å
Ratio:
a:b:c = 0.862 : 1 : 1.096
Unit Cell Volume:
V 3,070.63 ų (Calculated from Unit Cell)
Z:
9
X-Ray Powder Diffraction Data:
d-spacingIntensity
6.742(69)
6.416(39)
5.951(33)
3.265(100)
2.981(24)
2.649(22)
2.25(24)
2.188(71)
2.142(22)
2.123(31)
2.044(23)
1.949(33)

Optical Data of Chenguodaite

Type:
Isotropic
Bireflectance:
none
Internal Reflections:
none

Chemical Properties of Chenguodaite

Formula:
Ag9Fe3+Te2S4
All elements listed in formula:

Relationship of Chenguodaite to other Species

2.BA.05ChalcociteCu2S
2.BA.05DjurleiteCu31S16
2.BA.05GeeriteCu8S5
2.BA.05RoxbyiteCu9S5
2.BA.10AniliteCu7S4
2.BA.10DigeniteCu9S5
2.BA.15BorniteCu5FeS4
2.BA.20BellidoiteCu2Se
2.BA.20BerzelianiteCu2Se
2.BA.25AthabascaiteCu5Se4
2.BA.25UmangiteCu3Se2
2.BA.30RickarditeCu7Te5
2.BA.30WeissiteCu2-xTe
2.BA.35AcanthiteAg2S
2.BA.40MckinstryiteAg5-xCu3+xS4
2.BA.40StromeyeriteAgCuS
2.BA.40dUM2003-13-S:AgAuCuAg6AuCu2S5
2.BA.45JalpaiteAg3CuS2
2.BA.45SelenojalpaiteAg3CuSe2
2.BA.50EucairiteAgCuSe
2.BA.55AguilariteAg4SeS
2.BA.55NaumanniteAg2Se
2.BA.60CervelleiteAg4TeS
2.BA.60HessiteAg2Te
2.BA.65Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40
2.BA.65StütziteAg5-xTe3, x = 0.24-0.36
2.BA.70ArgyroditeAg8GeS6
2.BA.70CanfielditeAg8SnS6
2.BA.70Putzite(Cu4.7Ag3.3)GeS6
2.BA.75FischesseriteAg3AuSe2
2.BA.75Penzhinite(Ag,Cu)4Au(S,Se)4
2.BA.75PetrovskaiteAuAg(S,Se)
2.BA.75PetziteAg3AuTe2
2.BA.75UytenbogaardtiteAg3AuS2
2.BA.80Bezsmertnovite(Au,Ag)4Cu(Te,Pb)
2.BA.80BilibinskitePbCu2Au3Te2
2.BA.80Bogdanovite(Au,Te,Pb)3(Cu,Fe)

Other Names for Chenguodaite

Name in Other Languages:

Other Information

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

References for Chenguodaite

Reference List:
Gu Xiang-Ping, et al. (2008), Chenguodaite (Ag9FeTe2S4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. Chinese Science Bulletin 53(22), 3567-3573 (2008)


Gu Xiang-Ping, Watanabe, M., Hoshino, K., Shibata Y.: New find of silver tellurosulphides from the Funan gold deposit, East Shandong, China. European Journal of Mineralogy, 15:147-155 (2003)

Internet Links for Chenguodaite

Localities for Chenguodaite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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 (TL)
 
  • Shandong Province
    • Jiaodong Peninsula (Jiaodong Gold Province)
      • Yantai Prefecture
        • Zhaoyuan Co.
Chinese Sci. Bull. 53,3567 (2008)
USA
 
  • California
    • Tuolumne Co.
      • Mother Lode Belt
        • Jamestown District
          • Jamestown
            • Jamestown Mine (Jamestown group)
Gunnar Farber specimens.
Mineral and/or Locality  
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