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Moëloite

A valid IMA mineral species
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About MoëloiteHide

07373050014947597503344.jpg
Dr. Yves Moëlo
Formula:
Pb6Sb6S14(S3)
Colour:
Greyish-black
Lustre:
Metallic
Specific Gravity:
5.86 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Dr. Yves Moëlo, Institut des Matériaux, CNRS - Université de Nantes, France, a specialist of lead sulfosalt mineralogy. He first prepared and studied this compound.
A sulphosalt with a trisulphide anion.


Unique IdentifiersHide

Mindat ID:
27689
Long-form identifier:
mindat:1:1:27689:4
GUID
(UUID V4):
2b3d2354-8706-43d9-b01f-2d74f2b808ca

IMA Classification of MoëloiteHide

Classification of MoëloiteHide

2.HC.25

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

Mineral SymbolsHide

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

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

Physical Properties of MoëloiteHide

Metallic
Transparency:
Opaque
Colour:
Greyish-black
Comment:
Brownish-red very thin fibers
Streak:
Brown
Tenacity:
Flexible
Density:
5.86 g/cm3 (Calculated)

Optical Data of MoëloiteHide

Anisotropism:
moderate
Reflectivity:
WavelengthR1R2imR1imR2
400nm37.0%40.0%26.7%29.3%
420nm38.8%40.7%25.7%27.8%
440nm39.2%40.8%25.3%27.6%
460nm37.7%40.0%24.6%27.1%
470nm37.8%40.0%24.2%26.6%
480nm38.2%40.0%24.3%26.6%
500nm38.2%40.1%23.6%25.9%
520nm37.8%39.5%23.4%25.4%
540nm37.1%39.2%22.8%25.0%
546nm36.5%38.8%22.8%24.9%
560nm36.8%38.5%22.2%24.4%
580nm36.5%38.7%21.6%23.7%
589nm36.7%38.6%21.4%23.4%
600nm36.4%38.1%21.4%23.3%
620nm34.5%36.9%21.0%22.2%
640nm34.5%36.1%20.2%21.6%
650nm34.7%36.5%20.1%21.2%
660nm34.6%36.1%19.7%20.7%
680nm33.6%34.6%19.6%20.2%
700nm32.1%33.2%18.8%19.8%
720nm32.2%33.0%18.1%19.2%
740nm31.3%33.1%17.7%18.3%
760nm29.6%31.3%17.0%17.6%
780nm29.4%30.8%16.9%18.0%
800nm27.5%30.8%17.0%17.7%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 40.8%.
R1 shown in black, R2 shown in red, imR1 shown in green, imR2 shown in blue
Colour in reflected light:
white
Pleochroism:
Non-pleochroic

Chemistry of MoëloiteHide

Mindat Formula:
Pb6Sb6S14(S3)

Crystallography of MoëloiteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P21 21 2
Cell Parameters:
a = 15.328 Å, b = 4.04 Å, c = 23.054 Å
Ratio:
a:b:c = 3.794 : 1 : 5.706
Unit Cell V:
1427.6 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.724 Å(55)
3.427 Å(100)
3.047 Å(85)
2.844 Å(58)
2.779 Å(70)
2.753 Å(45)
2.017 Å(80)
1.733 Å(50)
Comments:
Format: d/Å I

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of MoëloiteHide

General Appearance of Type Material:
Very thin needles and soft plumose aggregates of flexible thin fibres.
Place of Conservation of Type Material:
Museo di Storia Naturale e del Territorio, Università di Pisa (Via Roma 103, I-56011 Calci (PI), Italy).
Geological Setting of Type Material:
Marble quarry
Associated Minerals at Type Locality:
Reference:
Orlandi, P., Meerschaut, A., Palvadeau, P., Merlino, S. (2002) Lead-antimony sulfosalts from Tuscany (Italy). V. Definition and crystal structure of moëloite, Pb6Sb6S14(S3), a new mineral from Ceragiola marble quarry. European Journal of Mineralogy: 14: 599-606.

Synonyms of MoëloiteHide

Other Language Names for MoëloiteHide

Simplified Chinese:穆硫锑铅矿
Traditional Chinese:穆硫銻鉛礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
4 photos of Moëloite associated with PyriteFeS2
1 photo of Moëloite associated with SphaleriteZnS

Related Minerals - Strunz-mindat GroupingHide

2.HC.BernarlottiitePb6(As5Sb3)S18Tric. 1 : P1
2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
2.HC.05bBaumhaueritePb12As16S36Tric. 1 : P1
2.HC.05dDufrénoysitePb2As2S5Mon. 2 : P21
2.HC.05aGuettarditePb8(Sb0.56As0.44)16S32Mon. 2/m : P21/b
2.HC.05cLiveingitePb9As13S28Mon. 2 : P21
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.05dVeenitePb16Sb9-xAs7+xS40, x ~ 0-0.5Mon. 2 : P21
2.HC.05gMarumoitePb32As40S92Mon. 2 : P21
2.HC.05dRathite-IVPbAs2S4
2.HC.05fPhilrothiteTlAs3S5Mon. 2/m : P21/b
2.HC.05hPolloneiteAgPb46As26Sb23S120Mon. 2 : P21
2.HC.05eHeptasartoriteTl7Pb22As55S108Mon. 2/m : P21/b
2.HC.05eHendekasartoriteTl2Pb48As82S172Mon. 2/m : P21/b
2.HC.05eÉcrinsiteAgTl3Pb4As11Sb9S36Tric. 1 : P1
2.HC.05bBaumhauerite II
2.HC.05cArgentoliveingiteAg3+xPb36-2xAs51+xS112Tric. 1 : P1
2.HC.05eIncomsartoriteTl6Pb144As246S516Mon. 2/m
2.HC.05dArgentodufrénoysiteAg3Pb26As35S80Tric. 1 : P1
2.HC.05aHyršlitePb8As10Sb6S32Mon. 2 : P21
2.HC.05eDekatriasartoriteTlPb58As97S204Mon. 2/m : P21/b
2.HC.10aFülöppitePb3Sb8S15Mon. 2/m : B2/b
2.HC.10cHeteromorphitePb7Sb8S19Mon. 2/m : B2/b
2.HC.10bPlagionitePb5Sb8S17Mon. 2/m : B2/b
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.30DadsonitePb23Sb25S60ClTric. 1 : P1
2.HC.35OwyheeiteAg3Pb10Sb11S28Mon. 2/m
2.HC.35ZoubekiteAgPb4Sb4S10Orth.
2.HC.40ParasterryiteAg4Pb20Sb14As10S58Mon. 2/m : P21/b
2.HC.50LopatkaitePb5Sb3AsS11Mon. 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.

Internet Links for MoëloiteHide

References for MoëloiteHide

Localities for MoëloiteHide

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 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.
Italy (TL)
 
  • Tuscany
    • Lucca Province
      • Seravezza
    • Massa-Carrara Province
        • Colonnata quarrying basin
        • Miseglia quarrying basin (Miseglia-Fantiscritti quarrying basin; Fantiscritti quarrying basin)
        • Torano quarrying basin
        • Casette
Switzerland
 
  • Valais
    • Sierre
      • Lens
 
矿物 and/or 产地  
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