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Suredaite Mineral Data
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General Suredaite Information
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 Chemical Formula: |
PbSnS3 |
| Composition: |
Molecular Weight = 390.35 gm |
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Silver 1.38 % Ag |
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Tin 30.41 % Sn |
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Arsenic 1.92 % As |
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Lead 42.46 % Pb |
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Sulfur 23.82 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Pb0.8Ag0.05SnAs0.1S2.9 |
| Environment: |
Stockwork mineralization in Ag-Sn mineral belt. |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Oploca vein system in the SW corner of the Pirquitas Ag-Sn deposti, NW Argentina. Link to MinDat.org Location Data. |
| Name Origin: |
The name honors R. J. Sureda Leston, head of the Department of Mineralogy end Economic Geology, University of Salta, Argentina. |
| Synonym: |
ICSD 89709 |
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IMA1997-043 |
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PDF 23-1168 |
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Suredaite Image |
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Images:
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Images:
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Suredaite
Comments: BSE image of a large zoned crystal of suredaite, chemically SU-3, surrounded (replaced) by SU-2. White is skeletal galena. (AmMin 85:1068).
Location: Pirquitas Ag-Sn deposit (Province Jujuy, NW-Argentina).
Scale: See Image.
© American Mineralogist |
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Suredaite Crystallography
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| Axial Ratios: |
a:b:c =2.3383:1:3.7127 |
| Cell Dimensions: |
a = 8.8221, b = 3.7728, c = 14.0076, Z = 4; V = 466.23 Den(Calc)= 5.56 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma |
| X Ray Diffraction: |
By Intensity(I/Io): 4.128(1)(103), 1.9335(0.54)(314), 2.6692(0.51),2.8081(0.51)(211), 2.7421(0.409)(204), 1.6316(0.389)(124), 3.73(0.3)(202), 3.1085(0.276)(112), 1.3754(0.265)(309), |
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Physical Properties of Suredaite
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| Cleavage: |
{001} Perfect, {101} Perfect, {100} Perfect |
| Color: |
Grayish black. |
| Density: |
5.54 - 5.88, Average = 5.71 |
| Diaphaneity: |
Opaque |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Habit: |
Tabular - Form dimensions are thin in one direction. |
| Hardness: |
2.5-3 - Finger Nail-Calcite |
| Luster: |
Metallic |
| Streak: |
black |
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Optical Properties of Suredaite
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| Optical Data: |
NCalc= 1.62 - from Gladstone-Dale relationship (KC = 0.1116) where Ncalc=Dcalc*KC+1
NCalc= 1.64 - from Gladstone-Dale relationship (KC = 0.1116) where Ncalc=Dmeas*KC+1
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| RL Anisotrophism: |
Rotation tints of metallic blue to mauve to brown. |
| RL Bireflectance: |
Not apparent. |
| RL Color: |
White. |
| RL Pleochroism: |
Not apparent. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Suredaite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
35.60 |
37.90 |
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| 420 nm |
35.50 |
37.50 |
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| 440 nm |
35.00 |
36.90 |
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| 460 nm |
34.30 |
36.30 |
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| 480 nm |
33.60 |
35.60 |
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| 500 nm |
32.90 |
34.80 |
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| 520 nm |
32.20 |
33.90 |
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| 540 nm |
31.50 |
33.10 |
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| 560 nm |
30.80 |
32.30 |
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| 580 nm |
30.30 |
31.70 |
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| 600 nm |
29.70 |
31.10 |
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| 620 nm |
29.30 |
30.70 |
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| 640 nm |
29.00 |
30.20 |
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| 660 nm |
28.70 |
29.80 |
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| 680 nm |
28.40 |
29.40 |
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| 700 nm |
28.40 |
29.30 |
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Standardized Intensity (100%) Reflection Spectra of Suredaite in Oil
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
21.30 |
22.40 |
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| 420 nm |
20.50 |
21.80 |
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| 440 nm |
19.80 |
21.20 |
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| 460 nm |
19.10 |
20.60 |
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| 480 nm |
18.50 |
19.90 |
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| 500 nm |
17.80 |
19.00 |
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| 520 nm |
17.20 |
18.40 |
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| 540 nm |
16.60 |
17.60 |
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| 560 nm |
16.10 |
17.00 |
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| 580 nm |
15.50 |
16.50 |
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| 600 nm |
15.20 |
16.00 |
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| 620 nm |
14.80 |
15.60 |
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| 640 nm |
14.50 |
15.20 |
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| 660 nm |
14.30 |
14.90 |
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| 680 nm |
14.00 |
14.60 |
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| 700 nm |
13.80 |
14.50 |
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Calculated Relative Intensity Colors of Suredaite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
300% |
| R1 |
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| R2 |
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Calculated Relative Intensity Colors of Suredaite in Oil
Relative
Intensity |
0% |
60% |
100% |
120% |
180% |
240% |
300% |
360% |
420% |
480% |
540% |
570% |
| R1 |
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| R2 |
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Calculated Properties of Suredaite
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| Electron Density: |
Bulk Density (Electron Density)=4.78 gm/cc
note: Specific Gravity of Suredaite =5.56 gm/cc.
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| Fermion Index: |
Fermion Index = 0.14
Boson Index = 0.86 |
| Photoelectric: |
PESuredaite = 862.93 barns/electron
U=PESuredaite x rElectron Density=4,121.30 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Suredaite is Not Radioactive |
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Suredaite Classification
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| Dana Class: |
02.04.21.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.04)where Am Bn Xp, with (m+n):p=2:1 |
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(02.04.21)Dana Group |
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02.04.21.01 Suredaite! PbSnS3 P nma 2/m 2/m 2/m |
| Strunz Class: |
02.DB.10 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DB -M:S = 2:3 and similar |
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02.DB.10 Suredaite! PbSnS3 P nma 2/m 2/m 2/m |
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02.DB.10 Ottemannite Sn2S3 Pnam 2/m 2/m 2/m |
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Other Suredaite Information
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| References: |
NAME( AmMin, 85:1066) PHYS. PROP.(AmMin, 85:1066) OPTIC PROP.(AmMin, 85:1066) |
| See Also: |
Links to other databases for Suredaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info
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Suredaite
PbSnS3
Dana No: 02.04.21.01 Strunz No: 02.DB.10
Locality:
Notes:
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