Schlemaite Mineral Data (original) (raw)
General Schlemaite Information
Chemical Formula:
(Cu,[ ])6(Pb,Bi)Se4
Composition:
Molecular Weight = 824.04 gm
Copper 43.57 % Cu
Silver 2.88 % Ag
Bismuth 10.14 % Bi
Lead 4.02 % Pb
Selenium 39.38 % Se
______
100.00 %
Empirical Formula:
Cu5.65Ag0.22Pb0.16Bi0.4Se4.11
Environment:
Occurs with other selenide minerals in the ore zone at the "tiber" dike, -855-m level, block 5128, main shaft # 371. Close to structural similarity with furutobeite.
IMA Status:
Approved IMA 2003 (Dana # Added)
Locality:
Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany. Link to MinDat.org Location Data.
Name Origin:
Named for the Schlema-Alberoda ore field in the ancient mining region of Saxony, Germany
Synonym:
IMA2003-026
Schlemaite Image
Images:
 |
Schlemaite Clausthalite Eucairite Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435). Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany.Scale: See Picture. © Canadian Mineralogist |
|---|
Schlemaite Crystallography
Axial Ratios:
a:b:c =2.3251:1:2.5008
Cell Dimensions:
a = 9.5341, b = 4.1004, c = 10.2546, Z = 2; beta = 100.066° V = 394.72 Den(Calc)= 6.93
Crystal System:
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m
X Ray Diffraction:
By Intensity(I/Io): 3.132(1)(112), 3.189(1)(012), 2.058(0.8)(020),2.601(0.7)(113), 2.151(0.6)(014), 1.909(0.5)(314), 2.505(0.5)(311),
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
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| | Forster H J , Cooper M A , Roberts A C , Stanley C J , Criddle A J , Hawthorne F C , Laflamme J H G , Tischendorf G , The Canadian Mineralogist , 41 (2003) p.1433-1444 | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Schlemaite
Cleavage:
None
Color:
Black, Silvery gray.
Diaphaneity:
Opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Intergrown Crystals - Occurs as intergrown crystalline aggregates
Hardness:
3 - Calcite
Luster:
Metallic
Streak:
black
Optical Properties of Schlemaite
RL Anisotrophism:
Very weak.
RL Bireflectance:
Very weak.
RL Color:
Gray with no internal reflections.
RL Pleochroism:
None.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Schlemaite in Air
| λ | R1 | R 2 |  |
∑ R1(λ) | ∑ R2(λ) |
|---|---|---|---|---|---|
| 400 nm | 35.30 | 36.20 |  |
||
| 420 nm | 36.10 | 37.10 |  |
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| 440 nm | 36.30 | 37.65 |  |
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| 460 nm | 36.60 | 38.00 |  |
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| 470 nm | 36.60 | 38.10 |  |
||
| 480 nm | 36.60 | 38.10 |  |
||
| 500 nm | 36.50 | 38.10 |  |
||
| 520 nm | 36.40 | 38.10 |  |
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| 540 nm | 36.50 | 38.10 |  |
||
| 546 nm | 36.45 | 38.10 |  |
||
| 560 nm | 36.40 | 38.20 |  |
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| 580 nm | 36.55 | 38.20 |  |
||
| 589 nm | 36.60 | 38.30 |  |
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| 600 nm | 36.70 | 38.35 |  |
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| 620 nm | 36.70 | 38.40 |  |
||
| 640 nm | 36.70 | 38.50 |  |
||
| 650 nm | 36.60 | 38.50 |  |
||
| 660 nm | 36.60 | 38.40 |  |
||
| 680 nm | 36.70 | 38.40 |  |
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| 700 nm | 36.40 | 38.50 |  |
Standardized Intensity (100%) Reflection Spectra of Schlemaite in Oil
| λ | R1 | R 2 | |
∑ R1(λ) | ∑ R2(λ) |
|---|---|---|---|---|---|
| 400 nm | 20.60 | 21.70 | |
||
| 420 nm | 20.90 | 22.30 | |
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| 440 nm | 21.10 | 22.70 | |
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| 460 nm | 21.10 | 23.00 | |
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| 470 nm | 21.10 | 23.00 | |
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| 480 nm | 21.05 | 23.10 | |
||
| 500 nm | 20.80 | 22.90 | |
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| 520 nm | 20.70 | 22.80 | |
||
| 540 nm | 20.70 | 22.80 | |
||
| 546 nm | 20.70 | 22.80 | |
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| 560 nm | 20.70 | 22.80 | |
||
| 580 nm | 20.90 | 22.90 | |
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| 589 nm | 20.95 | 22.90 | |
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| 600 nm | 21.00 | 23.10 | |
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| 620 nm | 21.10 | 23.10 | |
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| 640 nm | 21.00 | 23.20 | |
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| 650 nm | 21.00 | 23.20 | |
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| 660 nm | 21.10 | 23.20 | |
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| 680 nm | 21.10 | 23.20 | |
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| 700 nm | 21.00 | 23.40 | |
Calculated Relative Intensity Colors of Schlemaite in Air
| RelativeIntensity | 0% | 30% | 60% | 90% | 100% | 120% | 150% | 180% | 210% | 240% | 250% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R1 | |||||||||||
| R2 |
Calculated Relative Intensity Colors of Schlemaite in Oil
| RelativeIntensity | 0% | 50% | 100% | 150% | 200% | 250% | 300% | 350% | 400% | 420% |
|---|---|---|---|---|---|---|---|---|---|---|
| R1 | ||||||||||
| R2 |
Calculated Properties of Schlemaite
Electron Density:
Bulk Density (Electron Density)=6.06 gm/cc
note: Specific Gravity of Schlemaite =6.93 gm/cc.
Fermion Index:
Fermion Index = 0.03
Boson Index = 0.97
Photoelectric:
PESchlemaite = 317.38 barns/electron
U=PESchlemaite x rElectron Density=1,923.08 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Schlemaite is Not Radioactive
Schlemaite Classification
Dana Class:
02.16.12.02 (02)Sulfides - Including Selenides and Tellurides
(02.16)with miscellaneous formulae
(02.16.12)Dana Group
02.16.12.01 Furutobeite (Cu,Ag)6PbS4 Cm ? m
02.16.12.02 Schlemaite! (Cu,[])6(Pb,Bi)Se4 P 21/m 2/m
Strunz Class:
02.BE.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)
02.BE -With Pb(Bi)
02.BE.25 Schlemaite! (Cu,[])6(Pb,Bi)Se4 P 21/m 2/m
Other Schlemaite Information
References:
NAME( CanMin, v 41, p 1433) PHYS. PROP.(CanMin, v 41, p 1433) OPTIC PROP.(CanMin, v 41, p 1433)
See Also:
Links to other databases for Schlemaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Schlemaite Specimen Label here :
Schlemaite
(Cu,[ ])6(Pb,Bi)Se4
Dana No: 02.16.12.02 Strunz No: 02.BE.25
Locality:
Notes: