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Marumoite

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Formula:
Pb32As40S92
Colour:
Lead grey
Lustre:
Metallic
Crystal System:
Monoclinic
Name:
Named in honour of Fumiyuki MARUMO (b. 1931), professor of mineralogy and crystallography at Nihon University, Tokyo, Japan, a specialist of the structures of sulphosalts.
May belong to the Sartorite Group.


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Classification of MarumoiteHide

Approved
Approval Year:
1998
2.HC.05g

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
C : With only Pb
Dana 7th ed.:
3.7.8.4

Physical Properties of MarumoiteHide

Metallic
Transparency:
Opaque
Colour:
Lead grey

Chemical Properties of MarumoiteHide

Formula:
Pb32As40S92
IMA Formula:
Pb8As10S23

Crystallography of MarumoiteHide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
P21
Cell Parameters:
a = 8.368 Å, b = 115.75 Å, c = 7.903 Å
β = 90.11°
Ratio:
a:b:c = 0.072 : 1 : 0.068
Unit Cell V:
7654.8 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.978 (100)
3.663 (70)
2.339 (65)
2.735 (60)
2.713 (50)
2.872 (48)
3.216 (48)

Type Occurrence of MarumoiteHide

Synonyms of MarumoiteHide

Other Language Names for MarumoiteHide

Related Minerals - Nickel-Strunz GroupingHide

2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
2.HC.05bBaumhaueritePb12As16S36Tric. 1 : P1
2.HC.05eChabournéiteTl4Pb2(Sb,As)20S34Tric. 1 : P1
2.HC.05dDufrénoysitePb2As2S5Mon. 2 : P21
2.HC.05aGuettarditePbAsSbS4Mon. 2/m : P21/b
2.HC.05cLiveingitePb9As13S28Mon.
2.HC.05fParapierrotiteTlSb5S8Mon. m
2.HC.05fPierrotiteTl2(Sb,As)10S16Orth. mm2 : Pna21
2.HC.05dRathiteAg2Pb12-xTlx/2As18+x/2S40Mon. 2/m : P21/b
2.HC.05aSartoritePbAs2S4Mon. 2/m : P21/m
2.HC.05aTwinnite Pb0.8Tl0.1Sb1.3As0.8S4Mon. 2/m
2.HC.05dVeenitePb2(Sb,As)2S5Mon. 2 : P21
2.HC.05eDalnegroite(Tl4Pb2)(As12Sb8)S34Tric. 1 : P1
2.HC.10aFülöppitePb3Sb8S15Mon. 2/m : B2/b
2.HC.10cHeteromorphitePb7Sb8S19Mon. 2/m : B2/b
2.HC.10bPlagionitePb5Sb8S17Mon. 2/m
2.HC.10dRayitePb8(Ag,Tl)2Sb8S21Mon.
2.HC.10dSemseyitePb9Sb8S21Mon. 2/m : B2/b
2.HC.15BoulangeritePb5Sb4S11Mon. 2/m : P21/b
2.HC.15FalkmanitePb3Sb2S6Mon.
2.HC.20RobinsonitePb4Sb6S13Mon. 2/m : P21/m
2.HC.25MoëloitePb6Sb6S14(S3)Orth. 2 2 2 : P21 21 2
2.HC.30DadsonitePb23Sb25S60ClTric. 1 : P1
2.HC.35OwyheeiteAg3+xPb10-2xSb11+xS28, -0.13 < x > +0.20Mon. 2/m : P21/b
2.HC.35ZoubekiteAgPb4Sb4S10Orth.
2.HC.40ParasterryiteAg4Pb20Sb14As10S58Mon. 2/m : P21/b

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 MarumoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
OZAWA, T. & TAKEUCHI, Y. (1983): A new Pb-As sulfosalt having a long periodicity from Lengenbach. Mineralogical Society of Japan Annual Meeting 1983, D4 (abstract) .
Le Règne Minéral, 30 (1999) 33-41.
Shimizu M., Ishizaki Y., Honma T., Matsubara S., Miyawaki R. (2005): Mineral Deposit Research: Meeting the Global Challenge, 1, 695-697.
Shimizu, M., Ishizaki, Y., Honma, T., Matsubara, S., Miyawaki, R. (2005): Dufrenoysite and marumoite from the Okoppe Mine, Japan. 8th Biennal SGA Meeting, Beijing, August 18-21, 2005, Poster #100.

Internet Links for MarumoiteHide

Localities for MarumoiteHide

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.
Japan
 
  • Honshu Island
    • Tohoku Region
      • Aomori Prefecture
        • Shimokita peninsula
Shimizu, M., Ishizaki, Y., Honma, T., Matsubara, S., Miyawaki, R. (2005) Dufrenoysite and marumoite from the Okoppe mine, Japan. in Mineral Deposit Research: Meeting the Global Challenge. Proceedings of the Eighth Biennial SGA Meeting Beijing, China, 18–21 August 2005. Session 6., Springer (Berlin) 695-697. [Poster #100]
Switzerland (TL)
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Le Règne Minéral, (30), 33-41
Mineral and/or Locality  
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