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Ruizhongite

A valid IMA mineral species
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Formula:
(Ag2◻)Pb3Ge2S8
Colour:
gray
Lustre:
Metallic
Hardness:
3 - 3½
Specific Gravity:
5.706 (Calculated)
Crystal System:
Isometric
Name:
For Prof. Ruizhong Hu (1958) Institute of Geochemistry, Chinese Academy of Sciences.
Unique combination of elements (at the upload time).

Compare argyrodite.


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Unique IdentifiersHide

Mindat ID:
470465
Long-form identifier:
mindat:1:1:470465:8

IMA Classification of RuizhongiteHide

Classification of RuizhongiteHide

Strunz-mindat (2026):
2.CB.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
RzhIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of RuizhongiteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Gray
Streak:
Black
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
5.706 g/cm3 (Calculated)

Optical Data of RuizhongiteHide

Reflectivity:
WavelengthR1 (%)
400nm28.2%
420nm28.3%
440nm31.3%
460nm33.3%
470nm34.0%
480nm34.5%
500nm34.9%
520nm34.8%
540nm34.3%
546nm34.1%
560nm33.5%
580nm32.6%
589nm32.2%
600nm31.7%
620nm31.0%
640nm30.6%
650nm30.5%
660nm30.6%
680nm31.2%
700nm32.5%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 34.9%.
Colour in reflected light:
greenish grey
Internal Reflections:
none
Pleochroism:
Non-pleochroic

Chemistry of RuizhongiteHide

Mindat Formula:
(Ag2◻)Pb3Ge2S8
Element Weights:
Element% weight
Pb50.164 %
S20.702 %
Ag17.410 %
Ge11.724 %

Calculated from ideal end-member formula.
Pb
S
Ag
Ge
Elements listed:
Ag, Ge, Pb, S - search for minerals with similar chemistry

Chemical AnalysisHide

Oxide wt%:
 1
Pb57.37 %
S21.39 %
Ge11.53 %
Ag7.34 %
Zn1.57 %
Fe0.27 %
total99.46 %
Total:198.93 %
Empirical formulas:
Sample IDEmpirical Formula
1(Ag0 · 82Pb0.32Zn0.28Fe0.06)Σ1.48Pb3Ge1.9S8
Sample references:
IDLocalityReferenceNotes
1Wuishe Pb-Zn deposit, Wusihe deposits, Hanyuan County, Ya'an, Sichuan, China
Meng, Y., Gu, X., Meng, Songning, Huang, Xiao-Wen (2023) Ruizhongite, (Ag2□)Pb3Ge2S8, a thiogermanate mineral from the Wusihe 3 Pb–Zn deposit, Sichuan Province, Southwest China. American Mineralogist, 108 (9) 1818-1823
by EMPA; empirical formula basis: 8 S apfu

Crystallography of RuizhongiteHide

Crystal System:
Isometric
Class (H-M):
43m - Hextetrahedral
Space Group:
I43d
Cell Parameters:
a = 14.0559(2) Å
Unit Cell V:
2,777.00 ų (Calculated from Unit Cell)
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.755 Å(100)
3.511 Å(76)
2.992 Å(73)
2.482 Å(79)
2.276 Å(46)
2.075 Å(24)
1.784 Å(39)
1.680 Å(25)
Locality:
Wuishe Pb-Zn deposit, Wusihe deposits, Hanyuan County, Ya'an, Sichuan, China

Type Occurrence of RuizhongiteHide

Type Locality:
ⓘ Wuishe Pb-Zn deposit, Wusihe deposits, Hanyuan County, Ya'an, Sichuan, China
General Appearance of Type Material:
anhedral grains 1 to 10 µm
Place of Conservation of Type Material:
Type material is deposited in the collections of the Geological Museum of China, No. 16, Yangrou Hutong, Xisi, Beijing 100031, People's Republic of China, catalogue number M16138
Geological Setting of Type Material:
MVT deposit
Associated Minerals at Type Locality:
ArgutiteGalenaJordanitePyriteSphalerite
Reference:
Meng, Y., Gu, X., Meng, Songning, Huang, Xiao-Wen (2023) Ruizhongite, (Ag2□)Pb3Ge2S8, a thiogermanate mineral from the Wusihe 3 Pb–Zn deposit, Sichuan Province, Southwest China. American Mineralogist, 108 (9) 1818-1823

Synonyms of RuizhongiteHide

Other Language Names for RuizhongiteHide

Related Minerals - Strunz-mindat GroupingHide

2.CB.RichardsiteZn2CuGaS4Tet. 42m : I42m
2.CB.OkruginiteCu2SnSe3Mon. m : Bb
2.CB.HanswilkeiteKFeS2Mon. 2/m : B2/b
2.CB.AuroselenideAuSeMon. 2/m : B2/m
2.CB.AgmantiniteAg2MnSnS4Orth.
2.CB.TolstykhiteAu3S4Te6Tric. 1 : P1
2.CB.GachingiteAu(Te1-xSex)Orth. mmm(2/m2/m2/m)
2.CB.05aHawleyiteCdSIso. 43m : F43m
2.CB.05'UM1998-15-S:CuFeZn'Cu2Fe3Zn5S10
2.CB.05aColoradoiteHgTeIso. 43m : F43m
2.CB.05aMetacinnabarHgSIso. 43m : F43m
2.CB.05aTiemanniteHgSeIso. 43m : F43m
2.CB.05aSphaleriteZnSIso. 43m : F43m
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05cPolhemusite(Zn,Hg)STet.
2.CB.05aRudashevskyite(Fe,Zn)SIso. 43m : F43m
2.CB.05aStilleiteZnSeIso. 43m : F43m
2.CB.05aIshiharaite(Cu,Ga,Fe,In,Zn)SIso. 43m : F43m
2.CB.07a'Unnamed (Cu-Mn-Sn Sulphide)'Cu2MnSnS4
2.CB.07aShenzhuangiteNiFeS2Tet. 42m : I42d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 43m : I43m
2.CB.10bHaycockiteCu4Fe5S8Orth. 222
2.CB.10aLenaiteAgFeS2Tet. 42m : I42d
2.CB.10aGalliteCuGaS2Tet. 42m : I42d
2.CB.10aRoquesiteCuInS2Tet. 42m : I42d
2.CB.10aEskeborniteCuFeSe2Tet. 42m : P42c
2.CB.10a'UM1984-30-S:CuFeSn'Cu2Fe2Sn3S7
2.CB.10cOmariniiteCu8Fe2ZnGe2S12Orth. 222 : I222
2.CB.10aChalcopyriteCuFeS2Tet. 42m : I42d
2.CB.10a'Unnamed (Cu-Zn-In Sulphide)'CuZn2InS4
2.CB.10bMooihoekiteCu9Fe9S16Tet. 42m : P42m
2.CB.10aLaforêtiteAgInS2Tet. 42m : I42d
2.CB.10bPutoraniteCu1.1Fe1.2S2Iso. m3m(4/m32/m) : Pn3m
2.CB.15aVelikiteCu2HgSnS4Tet. 4 : I4
2.CB.15c'UM2006-11-S:CuFeGeZn'Cu8(Fe,Zn)3Ge2S12 (?)
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 42m : I42m
2.CB.15aKësteriteCu2ZnSnS4Tet. 4 : I4
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 42m : I42m
2.CB.15cStannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth. 222 : I222
2.CB.15bMohiteCu2SnS3Mon.
2.CB.15aČernýiteCu2CdSnS4Tet. 42m : I42m
2.CB.15aIdaiteCu5FeS6Hex.
2.CB.15aFerrokësteriteCu2FeSnS4Tet. 4 : I4
2.CB.15aKuramiteCu3SnS4Tet. 42m : I42m
2.CB.17a v'Arsenic-bearing Renierite'Cu11GeAsFe4S16
2.CB.20MawsoniteCu6Fe2SnS8Tet. 42m : P4m2
2.CB.20ChatkaliteCu6FeSn2S8Tet. 42m : P4m2
2.CB.30'Frieseite'Ag2Fe5S8 (?)
2.CB.30NekrasoviteCu26V2(Sn,As,Sb)6S32Iso. 43m : P43n
2.CB.30'Argyropyrite'near Ag2Fe7S11
2.CB.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32Iso. m3m(4/m32/m)
2.CB.30ColusiteCu13VAs3S16Iso. 43m : P43n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 43m : P43n
2.CB.30GermanocolusiteCu26V2(Ge,As)6S32Iso. 43m : P43m
2.CB.30StibiocolusiteCu13V(Sb,Sn,As)3S16Iso. 43m : P43m
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso. 43m : P43n
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4Iso.
2.CB.35aRenierite(Cu+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 42m : P42c
2.CB.35aHemusiteCu6SnMoS8Iso.
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.35aVincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 43m : F43m
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.
2.CB.40LautiteCuAsSOrth. mmm(2/m2/m2/m) : Pnma
2.CB.42LingbaoiteAgTe3Trig. 3m : R3m
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.45MaletoyvayamiteAu3Se4Te6Tric. 1 : P1
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.47MurchisiteCr5S6Trig. 3m(32/m) : P31c
2.CB.50'Zincselenide'ZnSe
2.CB.50WassoniteTiSTrig. 3m(32/m) : R3m
2.CB.52'Dzhezkazganite'ReMoCu2PbS6 ?Trig. 3m : R3m
2.CB.55bIsocubaniteCuFe2S3Iso. m3m(4/m32/m) : Fm3m
2.CB.55aCubaniteCuFe2S3Orth. mmm(2/m2/m2/m)
2.CB.60RaguiniteTlFeS2Orth.
2.CB.60PicotpauliteTlFe2S3Orth. mmm(2/m2/m2/m) : Cmcm
2.CB.65ArgentopyriteAgFe2S3Mon. 2/m
2.CB.65SternbergiteAgFe2S3Orth. mmm(2/m2/m2/m)
2.CB.70SulvaniteCu3VS4Iso. 43m : P43m
2.CB.75VulcaniteCuTeOrth. mmm(2/m2/m2/m)
2.CB.80EmpressiteAgTeOrth. mmm(2/m2/m2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

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.

Internet Links for RuizhongiteHide

References for RuizhongiteHide

Localities for RuizhongiteHide

Showing 1 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
China (TL)
 
  • Sichuan
    • Ya'an
      • Hanyuan County
        • Wusihe deposits
Miyawaki et al. (2022) +2 other references
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