Milotaite Mineral Data
General Milotaite Information
Chemical Formula:
PdSbSe
Composition:
Molecular Weight = 304.11 gm
Copper 0.84 % Cu
Silver 0.35 % Ag
Antimony 38.03 % Sb
Palladium 34.29 % Pd
Selenium 26.48 % Se
______
100.00 %
Empirical Formula:
Pd0.98 Cu0.04 Ag0.01 Sb0.95 Se1.02
Environment:
Low-temperature selenide-bearing uranium mineralization.
IMA Status:
Approved IMA 2003 (Dana # Added)
Locality:
Found during systematic study of reference polished sections from Predborice, Czech Republic. Link to MinDat.org Location Data.
Name Origin:
Named for Milota Makovicky, University of Copenhagen, for her outstanding investigations of sulfide and sulfarsenide systems with platinum-group elements.
Synonym:
IMA2003-056
Milotaite Image
Images:
Milotaite
Comments: Polished section image of milotaite (mi) which occurs as subhedral, minute inclusions in eucairite (eu)-tiemannite(ti). bo (bornite), di (selenian digenite), (CanMin, v43:689).
Location: Predborice, Czech Republic.
Scale: See Image.
© Canadian Mineralogist
Milotaite Crystallography
Cell Dimensions:
a = 6.3181, Z = 4; V = 252.21 Den(Calc)= 8.01
Crystal System:
Isometric - Tetartoidal H-M Symbol (2 3) Space Group: P 21 /3
X Ray Diffraction:
By Intensity(I/Io ): 2.825(1)(201), 1.905(0.98)(311), 2.579(0.81)(211), 3.159(0.53)(200), 2.233(0.32)(220), 1.752(0.27)(320), 1.688(0.25)(312), 1.378(0.18)(412),
Physical Properties of Milotaite
Cleavage:
None
Color:
Silver gray.
Density:
7.95 - 8.23, Average = 8.09
Diaphaneity:
Opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Inclusions - Generally found as inclusions in other minerals.
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Metallic
Optical Properties of Milotaite
RL Anisotrophism:
None.
RL Bireflectance:
None.
RL Color:
White with no internal reflections.
RL Pleochroism:
None.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Milotaite in Air
λ
R1
R 2
∑ R1 (λ)
∑ R2 (λ)
400 nm
51.80
53.80
420 nm
51.90
53.00
440 nm
51.90
51.30
460 nm
49.60
48.90
470 nm
48.60
48.00
480 nm
48.20
47.60
500 nm
47.50
47.20
520 nm
47.30
47.10
540 nm
47.50
47.20
546 nm
47.50
47.10
560 nm
47.60
47.00
580 nm
47.60
47.00
589 nm
47.60
47.00
600 nm
47.60
47.00
620 nm
47.90
47.40
640 nm
48.70
47.80
650 nm
49.00
48.20
660 nm
49.40
48.80
680 nm
50.10
49.50
700 nm
50.50
49.90
Calculated Relative Intensity Colors of Milotaite in Air
Relative Intensity
0%
20%
40%
60%
80%
100%
120%
140%
160%
180%
190%
R1
R2
Calculated Properties of Milotaite
Electron Density:
Bulk Density (Electron Density)=6.84 gm/cc note: Specific Gravity of Milotaite =8.01 gm/cc.
Fermion Index:
Fermion Index = 0.09 Boson Index = 0.91
Photoelectric:
PEMilotaite = 238.10 barns/electronU=PEMilotaite x r Electron Density=1,628.56 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Milotaite is Not Radioactive
Milotaite Classification
Dana Class:
02.12.03.15 (02) Sulfides - Including Selenides and Tellurides
(02.12) where Am Bn Xp, with (m+n):p=1:2
(02.12.03) Cobaltite Group (Cubic or pseudocubic crystals)
02.12.03.01 Cobaltite CoAsS P ca21 mm2
02.12.03.02 Gersdorffite NiAsS P 21 3 2 3
02.12.03.03 Ullmannite NiSbS P 21 3 2 3
02.12.03.04 Willyamite (Co,Ni)SbS P 21 3 2 3
02.12.03.05 Tolovkite IrSbS P 21 3 2 3
02.12.03.06 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
02.12.03.07 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
02.12.03.08 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
02.12.03.09 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
02.12.03.10 Padmaite PdBiSe P 21 3 2 3
02.12.03.11 Michenerite (Pd,Pt)BiTe P 21 3 2 3
02.12.03.12 Maslovite PtBiTe P 21 3 2 3
02.12.03.13 Testibiopalladite PdTe(Sb,Te) P 21 3 2 3
02.12.03.14 Changchengite ! IrBiS P 21 3 2 3
02.12.03.15 Milotaite ! PdSbSe P 21 /3 2 3
02.12.03.16 Kalungaite ! PdAsSe Pa3 2/m 3
Strunz Class:
02.EB.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.E - Metal Sulfides, M:S � 1:2
02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.
02.EB.25 Cobaltite CoAsS P ca21 mm2
02.EB.25 Changchengite ! IrBiS P 21 3 2 3
02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
02.EB.25 Gersdorffite NiAsS P 21 3 2 3
02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
02.EB.25 Krutovite NiAs2 P a3 2/m 3
02.EB.25 Michenerite (Pd,Pt)BiTe P 21 3 2 3
02.EB.25 Maslovite PtBiTe P 21 3 2 3
02.EB.25 Mayingite IrBiTe P a3 2/m 3
02.EB.25 Padmaite PdBiSe P 21 3 2 3
02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
02.EB.25 Ullmannite NiSbS P 21 3 2 3
02.EB.25 Tolovkite IrSbS P 21 3 2 3
02.EB.25 Testibiopalladite PdTe(Sb,Te) P 21 3 2 3
02.EB.25 Willyamite (Co,Ni)SbS P 21 3 2 3
02.EB.25 Kalungaite ! PdAsSe Pa3 2/m 3
02.EB.25 Milotaite ! PdSbSe P 21 /3 2 3
Other Milotaite Information
References:
NAME( CanMin, v43:689) PHYS. PROP.(CanMin, v43:689) OPTIC PROP.(CanMin, v43:689)
See Also:
Links to other databases for Milotaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Milotaite
PdSbSe
Dana No: 02.12.03.15 Strunz No: 02.EB.25
Locality:
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