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:

Pd_0.98Cu_0.04Ag_0.01Sb_0.95Se_1.02

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

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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	R₂	∑ 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:

PE_Milotaite= 238.10 barns/electron
U=PE_Milotaite x rElectron 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 2₁3 2 3

02.12.03.03 Ullmannite NiSbS P 2₁3 2 3

02.12.03.04 Willyamite (Co,Ni)SbS P 2₁3 2 3

02.12.03.05 Tolovkite IrSbS P 2₁3 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 2₁3 2 3

02.12.03.11 Michenerite (Pd,Pt)BiTe P 2₁3 2 3

02.12.03.12 Maslovite PtBiTe P 2₁3 2 3

02.12.03.13 Testibiopalladite PdTe(Sb,Te) P 2₁3 2 3

02.12.03.14 Changchengite! IrBiS P 2₁3 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 ï¿½ 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 2₁3 2 3

02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3

02.EB.25 Gersdorffite NiAsS P 2₁3 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 2₁3 2 3

02.EB.25 Maslovite PtBiTe P 2₁3 2 3

02.EB.25 Mayingite IrBiTe P a3 2/m 3

02.EB.25 Padmaite PdBiSe P 2₁3 2 3

02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3

02.EB.25 Ullmannite NiSbS P 2₁3 2 3

02.EB.25 Tolovkite IrSbS P 2₁3 2 3

02.EB.25 Testibiopalladite PdTe(Sb,Te) P 2₁3 2 3

02.EB.25 Willyamite (Co,Ni)SbS P 2₁3 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:

Notes:

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