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Moëloite

A valid IMA mineral species
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06466550017271948837615.jpg
Moëloite

Madielle quarries, Madielle quarrying basin, Massa, Massa-Carrara Province, Tuscany, Italy
03038490017271948841491.jpg
Moëloite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy
08122730017271948849080.jpg
Moëloite, etc.

Ceragiola quarries, Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy
04916380017864942014317.jpg
Moëloite

Madielle quarries, Madielle quarrying basin, Massa, Massa-Carrara Province, Tuscany, Italy
03038490017271948841491.jpg
Moëloite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy
08122730017271948849080.jpg
Moëloite, etc.

Ceragiola quarries, Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy
06466550017271948837615.jpg
Moëloite

Madielle quarries, Madielle quarrying basin, Massa, Massa-Carrara Province, Tuscany, Italy
03038490017271948841491.jpg
Moëloite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy
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About MoëloiteHide

00008600017271948855647.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.


Name EncodingHide

ASCII-7:
Moeloite

Unique IdentifiersHide

Mindat ID:
27689
Long-form identifier:
mindat:1:1:27689:4

Similar NamesHide

MelliteA valid IMA mineral species - grandfatheredAl2[C6(COO)6] · 16H2O
MolliteA synonym of Lazulite
MoolooiteA valid IMA mineral speciesCu(C2O4) · nH2O
MulliteA valid IMA mineral species - grandfatheredAl4+2xSi2-2xO10-x

IMA Classification of MoëloiteHide

Classification of MoëloiteHide

Strunz-mindat (2026):
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 for Standard
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

Lustre:
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:
WavelengthR1 (%)R2 (%)imR1 (%)imR2 (%)
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%


Graph shows reflectance levels at different wavelengths (in nm). 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)
Element Weights:
Element% weight
Pb49.356 %
Sb29.004 %
S21.641 %

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

Crystallography of MoëloiteHide

Crystal System:
Orthorhombic
Class (H-M):
222 - Disphenoidal
Space Group:
P21212
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

Geological EnvironmentHide

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

Type Occurrence of MoëloiteHide

Type Locality:
ⓘ Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy
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:
EnargitePyriteNative Sulphur
Reference:
Orlandi, Paolo, Meerschaut, Alain, Palvadeau, Pierre, Merlino, Stefano (2002) Lead-antimony sulfosalts from Tuscany (Italy) V. Definition and crystal structure of moëloite, Pb6Sb6S14(S3), a new mineral from the Ceragiola marble quarry. European Journal of Mineralogy, 14 (3) 599-606 doi:10.1127/0935-1221/2002/0014-0599

Synonyms of MoëloiteHide

Other Language Names for MoëloiteHide

Dutch:Moëloiet
German:Moëloit
Simplified Chinese:穆硫锑铅矿
Traditional Chinese:穆硫銻鉛礦

Common AssociatesHide

Associations Based on Photo Data:
4 photos of Moëloite associated with PyriteFeS2
1 photo of Moëloite associated with CalciteCaCO3
1 photo of Moëloite associated with SphaleriteZnS

Related Minerals - Strunz-mindat GroupingHide

2.HC.BernarlottiitePb6(As5Sb3)S18Tric. 1 : P1
2.HC.HuntingdonitePb19Sb16As6S51Cl2Tric. 1 : P1
2.HC.MoiraitePb12Sb8As8S36Tric. 1 : P1
2.HC.05fParapierrotiteTlSb5S8Mon. m
2.HC.05gMarumoitePb32As40S92Mon. 2 : P21
2.HC.05bBaumhauerite II
2.HC.05dRathiteAg2Pb12-xTlx/2As18+x/2S40Mon. 2/m : P21/b
2.HC.05eHeptasartoriteTl7Pb22As55S108Mon. 2/m : P21/b
2.HC.05dDufrénoysitePb2As2S5Mon. 2 : P21
2.HC.05eHendekasartoriteTl2Pb48As82S172Mon. 2/m : P21/b
2.HC.05bArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
2.HC.05cArgentoliveingiteAg3+xPb36-2xAs51+xS112Tric. 1 : P1
2.HC.05bBaumhaueritePb12As16S36Tric. 1 : P1
2.HC.05dVeenitePb16Sb9-xAs7+xS40, x ~ 0-0.5Mon. 2 : P21
2.HC.05eDekatriasartoriteTlPb58As97S204Mon. 2/m : P21/b
2.HC.05aHyršlitePb8As10Sb6S32Mon. 2 : P21
2.HC.05eIncomsartoriteTl6Pb144As246S516Mon. 2/m
2.HC.05cLiveingitePb20As24S56Mon. 2 : P21
2.HC.05cJohnjamboritePb14Sb8.5As7.5S38Tric. 1 : P1
2.HC.05fPierrotiteTl2(Sb,As)10S16Orth. mm2 : Pna21
2.HC.05dRathite-IVPbAs2S4
2.HC.05dArgentodufrénoysiteAg3Pb26As35S80Tric. 1 : P1
2.HC.05eÉcrinsiteAgTl3Pb4As11Sb9S36Tric. 1 : P1
2.HC.05aSartoritePbAs2S4Mon. 2/m : P21/m
2.HC.05aTwinnite Pb0.8Tl0.1Sb1.3As0.8S4Mon. 2/m
2.HC.05fPhilrothiteTlAs3S5Mon. 2/m : P21/b
2.HC.05hPolloneiteAgPb46As26Sb23S120Mon. 2 : P21
2.HC.05aGuettarditePb8(Sb0.56As0.44)16S32Mon. 2/m : P21/b
2.HC.10aFülöppitePb3Sb8S15Mon. 2/m : B2/b
2.HC.10dSemseyitePb9Sb8S21Mon. 2/m : B2/b
2.HC.10dRayitePb8(Ag,Tl)2Sb8S21Mon.
2.HC.10cHeteromorphitePb7Sb8S19Mon. 2/m : B2/b
2.HC.10bPlagionitePb5Sb8S17Mon. 2/m : B2/b
2.HC.15FalkmanitePb3Sb2S6Mon.
2.HC.15BoulangeritePb5Sb4S11Mon. 2/m : P21/b
2.HC.20RobinsonitePb4Sb6S13Mon. 2/m : P21/m
2.HC.30DadsonitePb23Sb25S60ClTric. 1 : P1
2.HC.35ZoubekiteAgPb4Sb4S10Orth.
2.HC.35Proto-owyheeiteAg9Pb40Sb45S112Mon. 2/m : P21/b
2.HC.35OwyheeiteAg3Pb10Sb11S28Mon. 2/m
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

Showing 12 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.
Hide all sections | Show all sections

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
Orlandi et al. (2002) +1 other reference
Biagioni C. et al. (2019)
    • Massa-Carrara Province
Orlandi et al. (2009)
        • Colonnata quarrying basin
Orlandi et al. (2009) +1 other reference
        • Miseglia quarrying basin (Miseglia-Fantiscritti quarrying basin; Fantiscritti quarrying basin)
Favreau (2008)
        • Miseglie quarrying basin (Miseglia-Fantiscritti quarrying basin; Fantiscritti quarrying basin)
Morino et al. (2016)
        • Torano quarrying basin
Matteo Chinellato collection
Orlandi et al. (2009)
        • Casette
Orlandi et al. (2000)
Orlandi et al. (2000) +1 other reference
Orlandi et al. (2000) +1 other reference
Switzerland
 
  • Valais
    • Sierre
      • Lens
Ansermet et al. (2011)
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