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Milotaite

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Předbořice, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
© Frank Keutsch




Formula:
PdSbSe
System:IsometricColour:Silvery grey
Hardness:4½
Member of:Cobaltite Group
Name:Named after Milota Makovicky, University of Copenhagen, Denmark, for her outstanding investigations of sulfide and sulfarsenide systems with platinum-group elements.
This page provides mineralogical data about Milotaite.

Classification of Milotaite

IMA status:Approved 2003
Nickel-Strunz 10th (pending) edition ID:2.EB.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
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Type Occurrence of Milotaite

Type Locality:Předbořice, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
General Appearance of Type Material:subhedral grains not exceeding 25 µm in size, embedded in eucairite and tiemannite and randomly intergrown with bornite and digenite
Associated Minerals at type locality:
UraniniteTyrrelliteTiemanniteHakiteGold
FischesseriteEucairiteDigeniteClausthaliteChrisstanleyite
ChaméaniteCalciteBornite

Physical Properties of Milotaite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Silvery grey
Streak:Grey
Hardness (Mohs):4½
Hardness (Vickers):VHN100=420 - 514 kg/mm2
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven

Crystallography of Milotaite

Crystal System:Isometric
Class (H-M):2 3 - Tetartoidal
Space Group:P21 3
Cell Parameters:a = 6.3181Å
Unit Cell Volume:V 252.21 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
3.16(53)
2.825(100)
2.579(81)
2.233(32)
1.905(98)
1.752(27)
1.688(25)
1.379(18)

Optical Data of Milotaite

Type:Isotropic
Reflectivity:
470nmR=48.6%
546nmR=47.5%
589nmR=47.6%
650nmR=49.0%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 49.0%.
Colour in reflected light:White
Internal Reflections:None

Chemical Properties of Milotaite

Formula:
PdSbSe
All elements listed in formula:Pd, Sb, Se

Relationship of Milotaite to other Species

Member of:Cobaltite Group
Other Members of Group:

- +
Changchengite
IrBiS
Cobaltite
CoAsS
Gersdorffite
NiAsS
Hollingworthite
(Rh,Pt,Pd)AsS
Irarsite
(Ir,Ru,Rh,Pt)AsS
Jolliffeite
NiAsSe
Kalungaite
PdAsSe
Krutovite
NiAs
 
2
Maslovite
PtBiTe
Mayingite
IrBiTe
Michenerite
PdBiTe
Padmaite
PdBiSe
Platarsite
(Pt,Rh,Ru)AsS
Testibiopalladite
PdTe(Sb,Te)
Tolovkite
IrSbS
Ullmannite
NiSbS
Willyamite
(Co,Ni)SbS
Related Minerals - Nickel-Strunz Grouping):

- +
2.EB.05aAurostibite
AuSb
 
2
2.EB.05bBambollaite
Cu(Se,Te)
 
2
2.EB.05aCattierite
CoS
 
2
2.EB.05aErlichmanite
OsS
 
2
2.EB.05aFukuchilite
Cu
 
3
FeS
 
8
2.EB.05aGeversite
PtSb
 
2
2.EB.05aHauerite
MnS
 
2
2.EB.05aInsizwaite
Pt(Bi,Sb)
 
2
2.EB.05aKrut'aite
CuSe
 
2
2.EB.05aLaurite
RuS
 
2
2.EB.05aPenroseite
(Ni,Co,Cu)Se
 
2
2.EB.05aPyrite
FeS
 
2
2.EB.05aSperrylite
PtAs
 
2
2.EB.05aTrogtalite
CoSe
 
2
2.EB.05aVaesite
NiS
 
2
2.EB.05aVillamaninite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05aDzharkenite
FeSe
 
2
2.EB.05aGaotaiite
Ir
 
3
Te
 
8
2.EB.10bAlloclasite
Co
 
1-x
Fe
 
x
AsS
2.EB.10dCostibite
CoSbS
2.EB.10aFerroselite
FeSe
 
2
2.EB.10aFrohbergite
FeTe
 
2
2.EB.10cGlaucodot
(Co
 
0.50
Fe
 
0.50
)AsS
2.EB.10aKullerudite
NiSe
 
2
2.EB.10aMarcasite
FeS
 
2
2.EB.10aMattagamite
CoTe
 
2
2.EB.10eParacostibite
CoSbS
2.EB.10ePararammelsbergite
NiAs
 
2
2.EB.10fOenite
CoSbAs
2.EB.15aAnduoite
(Ru,Os)As
 
2
2.EB.15aClinosafflorite
(Co,Fe,Ni)As
 
2
2.EB.15aLöllingite
FeAs
 
2
2.EB.15aNisbite
NiSb
 
2
2.EB.15aOmeiite
(Os,Ru)As
 
2
2.EB.15cPaxite
CuAs
 
2
2.EB.15aRammelsbergite
NiAs
 
2
2.EB.15aSafflorite
(Co,Fe,Ni)As
 
2
2.EB.15bSeinäjokite
(Fe,Ni)(Sb,As)
 
2
2.EB.20Arsenopyrite
FeAsS
2.EB.20Gudmundite
FeSbS
2.EB.20Osarsite
(Os,Ru)AsS
2.EB.20Ruarsite
(Ru,Os)AsS
2.EB.25Cobaltite
CoAsS
2.EB.25Gersdorffite
NiAsS
2.EB.25Hollingworthite
(Rh,Pt,Pd)AsS
2.EB.25Irarsite
(Ir,Ru,Rh,Pt)AsS
2.EB.25Jolliffeite
NiAsSe
2.EB.25Krutovite
NiAs
 
2
2.EB.25Maslovite
PtBiTe
2.EB.25Michenerite
PdBiTe
2.EB.25Padmaite
PdBiSe
2.EB.25Platarsite
(Pt,Rh,Ru)AsS
2.EB.25Testibiopalladite
PdTe(Sb,Te)
2.EB.25Tolovkite
IrSbS
2.EB.25Ullmannite
NiSbS
2.EB.25Willyamite
(Co,Ni)SbS
2.EB.25Changchengite
IrBiS
2.EB.25Mayingite
IrBiTe
2.EB.25Hollingsworthite
2.EB.25Kalungaite
PdAsSe
2.EB.30Urvantsevite
Pd(Bi,Pb)
 
2
2.EB.35Rheniite
ReS
 
2

Other Names for Milotaite

Synonyms:
IMA2003-056
Other Languages:
German:Milotait
Russian:Милотаит

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Milotaite

Reference List:

- +
W. H. Paar, D. Topa, E. Makovický, F. J. Culetto: "Milotaite, PdSbSe, a new palladium mineral, from Předbořice, Czech Republic", The Canadian Mineralogist 43, 689-694 (2005)

Internet Links for Milotaite

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    • Localities for Milotaite

    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
    		W. H. Paar, D. Topa, E. Makovický, F. J. Culetto: "Milotaite, PdSbSe, a new palladium mineral, from Předbořice, Czech Republic", The Canadian Mineralogist 43, 689-694 (2005)
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