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Chenguodaite

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01411150014971706607554.jpg
Chenguodaite

Harvard Mine, Jamestown Mine, Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA
01411150014971706607554.jpg
Chenguodaite

Harvard Mine, Jamestown Mine, Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA
01411150014971706607554.jpg
Chenguodaite

Harvard Mine, Jamestown Mine, Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA
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About ChenguodaiteHide

09096580015137339117061.jpg
Chen Guoda
Formula:
Ag9Fe3+Te2S4
Colour:
dark gray
Lustre:
Metallic
Hardness:
2 - 3
Specific Gravity:
6.85 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Chen Guoda (陈国达) (22 January 1912, Xinhui County, Guangdong Province, China - 7 April 2004, Changsha, Hunan province, China), geologist, professor, and founder of Diwa-Geodepression theory of tectonics.
Compare 'UM1989-18-S:AgFeTe'.


Classification of ChenguodaiteHide

IMA status:
Approved
Approval Year:
2005
First Published:
2008
Nickel-Strunz 10th (pending) ed.:
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
Dana 8th ed.:
2.16.28.

2 : SULFIDES
16 : Miscellaneous

Physical Properties of ChenguodaiteHide

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

Optical Data of ChenguodaiteHide

Type:
Isotropic
Bireflectance:
none
Internal Reflections:
none

Chemical Properties of ChenguodaiteHide

Formula:
Ag9Fe3+Te2S4
IMA Formula:
Ag9FeTe2S4
Elements listed:
Ag, Fe, S, Te - search for minerals with similar chemistry

Crystallography of ChenguodaiteHide

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 V:
3,070.63 ų (Calculated from Unit Cell)
Z:
9

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.742Å(69)
6.416Å(39)
5.951Å(33)
3.265Å(100)
2.981Å(24)
2.649Å(22)
2.25Å(24)
2.188Å(71)
2.142Å(22)
2.123Å(31)
2.044Å(23)
1.949Å(33)

Type Occurrence of ChenguodaiteHide

Type Locality:
ⓘ Funan Au deposit (Bunan), Zhaoyuan Co., Yantai, Jiaodong Peninsula (Jiaodong Gold Province), Shandong, China
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:
SilverHessiteGalenaChalcopyriteAcanthite
Reference:
Gu, X., Watanabe, M., Xie, X., Peng, S., Nakamuta, Y., Ohkawa, M., Hoshino, K., Ohsumi, K., Shibata, Y. (2008) Chenguodaite (Ag^9FeTe^2S^4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. Chinese Science Bulletin: 53(22): 3567-3573.
Download:
http://rruff.info/rruff_1.0/uploads/CSB22_2008_3567.pdf

Synonyms of ChenguodaiteHide

Related Minerals - Nickel-Strunz GroupingHide

2.BA.AlburniteAg8GeTe2S4Iso.
2.BA.DzierżanowskiteCaCu2S2Trig. 3m (3 2/m) : P3m1
2.BA.05ChalcociteCu2SMon. 2/m : P21/b
2.BA.05DjurleiteCu31S16Mon. 2/m
2.BA.05GeeriteCu8S5Trig. 3
2.BA.05RoxbyiteCu9S5Tric. 1 : P1
2.BA.10AniliteCu7S4Orth. mmm (2/m 2/m 2/m) : Pnma
2.BA.10DigeniteCu9S5Trig. 3m (3 2/m) : R3m
2.BA.15BorniteCu5FeS4Orth. mmm (2/m 2/m 2/m) : Pbca
2.BA.20BellidoiteCu2SeTet. 4/m : P42/n
2.BA.20BerzelianiteCu2SeIso. m3m (4/m 3 2/m) : Fm3m
2.BA.25AthabascaiteCu5Se4Orth.
2.BA.25UmangiteCu3Se2Tet.
2.BA.30RickarditeCu7Te5Orth.
2.BA.30WeissiteCu2-xTeHex.
2.BA.35AcanthiteAg2SMon. 2/m : P21/m
2.BA.40MckinstryiteAg5-xCu3+xS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.BA.40StromeyeriteAgCuSOrth. mmm (2/m 2/m 2/m)
2.BA.40dUM2003-13-S:AgAuCuAg6AuCu2S5
2.BA.45JalpaiteAg3CuS2Tet.
2.BA.45SelenojalpaiteAg3CuSe2Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
2.BA.50EucairiteAgCuSeOrth.
2.BA.55AguilariteAg4SeSMon. 2/m
2.BA.55NaumanniteAg2SeOrth. 2 2 2 : P21 21 21
2.BA.60CervelleiteAg4TeSMon. 2/m
2.BA.60HessiteAg2TeMon. 2/m : P21/b
2.BA.65Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40 Iso. m3m (4/m 3 2/m) : Fd3c
2.BA.65StütziteAg5-xTe3, x = 0.24-0.36Hex. 6 : P6
2.BA.70ArgyroditeAg8GeS6Orth. mm2 : Pna21
2.BA.70CanfielditeAg8SnS6Orth. mm2
2.BA.70Putzite(Cu4.7Ag3.3)GeS6Iso. 4 3m : F4 3m
2.BA.75FischesseriteAg3AuSe2Iso. 4 3 2 : I41 3 2
2.BA.75Penzhinite(Ag,Cu)4Au(S,Se)4Hex.
2.BA.75PetrovskaiteAuAgSMon.
2.BA.75PetziteAg3AuTe2Iso. 4 3 2 : I41 3 2
2.BA.75UytenbogaardtiteAg3AuS2Trig. 3m (3 2/m) : R3c
2.BA.80Bezsmertnovite(Au,Ag)4Cu(Te,Pb)Orth.
2.BA.80BilibinskitePbCu2Au3Te2Iso.
2.BA.80Bogdanovite(Au,Te,Pb)3(Cu,Fe)Iso.

Other InformationHide

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 ChenguodaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gu X., Watanabe, M., Hoshino, K., Shibata Y. (2003) New find of silver tellurosulphides from the Funan gold deposit, East Shandong, China. European Journal of Mineralogy: 15: 147-155.
Gu, X., Watanabe, M., Xie, X., Peng, S., Nakamuta, Y., Ohkawa, M., Hoshino, K., Ohsumi, K., Shibata, Y. (2008) Chenguodaite (Ag9FeTe2S4): a new tellurosulfide mineral from the gold district of East Shandong Peninsula, China. Chinese Science Bulletin: 53(22): 3567-3573.

Internet Links for ChenguodaiteHide

Localities for ChenguodaiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China (TL)
 
  • Shandong
    • Jiaodong Peninsula (Jiaodong Gold Province)
      • Yantai
        • Zhaoyuan Co.
Chinese Sci. Bull. 53,3567 (2008)
USA
 
  • California
    • Tuolumne Co.
      • Mother Lode Belt
        • Jamestown District
          • Jamestown
            • Jamestown Mine (Jamestown group)
Gunnar Färber specimens.
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