Putzite Mineral Data (original) (raw)
General Putzite Information
Chemical Formula:
(Cu4.7Ag3.3)GeS6
Composition:
Molecular Weight = 925.86 gm
Copper 32.81 % Cu
Silver 39.03 % Ag
Germanium 7.76 % Ge
Sulfur 20.40 % S
______
100.00 %
Empirical Formula:
Cu4.78Ag3.35Ge0.99S5.89
Environment:
Epithermal veins hosted in rhyolite, ignimbrite and granite. Argentian variety of alpha-Cu8GeS6
IMA Status:
Approved IMA 2004 (Dana # Added)
Locality:
Old dumps near the Rosario vein, Capillitas mining district, Department of Andalgal�, Catamarca Province, Argentina. Link to MinDat.org Location Data.
Name Origin:
Named for Hubert Putz (1973-), who discovered the new species during field work in Catamarca, for his significant contribution to the mineralogy of germanium in the Capillitas depos it.
Synonym:
IMA2002-024
Putzite Image
Images:
 |
Putzite Catamarcaite Comments: Polished section of putzite (pu) grain in close association with unnamed Cu8Fe2ZnGe2S12 (un1) and catamarcaite (ca), as inclusions in chalcocite-sphalerite (cc/sp) (CanMin 42:1761). Location: Old dumps near the Rosario vein, Capillitas mining district, Department of Andalgalá, Catamarca Province, Argentina..Scale: See Image. © Canadian Mineralogist |
|---|
Putzite Crystallography
Cell Dimensions:
a = 10.201, Z = 4; V = 1,061.52 Den(Calc)= 5.79
Crystal System:
Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: F43m
X Ray Diffraction:
By Intensity(I/Io): 2.943(1)(222), 1.805(0.7)(440), 3.074(0.6)(311),1.962(0.5)(333), 2.083(0.3)(422), 5.896(0.3)(111), 1.725(0.25)(531),
Crystal Structure:
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drag2 - RMB Resize/Rotate
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| | Paar W H , Roberts A C , Berlepsch P , Armbruster T , Topa D , Zagler G , The Canadian Mineralogist , 42 (2004) p.1757-1769, Putzite, (Cu4.7Ag3.3)8GeS6, a new mineral species, from Capillitas, Catamarca,, Argentina: Description and crystal structure, Locality: Capillitas, Catamarca, Argentina | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Putzite
Cleavage:
{???} Distinct
Color:
Iron black.
Diaphaneity:
Opaque
Fracture:
Brittle - Irregular - Very brittle fracture producing irregular fragments
Habit:
Anhedral Grains - Granular minerals without the expression of crystal shapes
Habit:
Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Hardness:
3-3.5 - Calcite-Copper Penny
Luster:
Vitreous - Metallic
Streak:
black
Optical Properties of Putzite
RL Anisotrophism:
None.
RL Bireflectance:
None.
RL Color:
Pale rose-brownish; no internal reflections.
RL Pleochroism:
None.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Putzite in Air
| λ | R |  |
∑ R(λ) |
|---|---|---|---|
| 400 nm | 33.50 |  |
|
| 420 nm | 31.60 |  |
|
| 440 nm | 30.60 |  |
|
| 460 nm | 29.40 |  |
|
| 470 nm | 28.90 |  |
|
| 480 nm | 28.60 |  |
|
| 500 nm | 27.80 |  |
|
| 520 nm | 27.20 |  |
|
| 540 nm | 26.70 |  |
|
| 546 nm | 26.50 |  |
|
| 560 nm | 26.30 |  |
|
| 580 nm | 26.00 |  |
|
| 589 nm | 25.80 |  |
|
| 600 nm | 25.70 |  |
|
| 620 nm | 25.40 |  |
|
| 640 nm | 25.30 |  |
|
| 650 nm | 25.30 |  |
|
| 660 nm | 25.20 |  |
|
| 680 nm | 25.20 |  |
|
| 700 nm | 25.20 |  |
Standardized Intensity (100%) Reflection Spectra of Putzite in Oil
| λ | R | |
∑ R(λ) |
|---|---|---|---|
| 400 nm | 16.60 | |
|
| 420 nm | 15.20 | |
|
| 440 nm | 14.50 | |
|
| 460 nm | 13.90 | |
|
| 470 nm | 13.50 | |
|
| 480 nm | 13.10 | |
|
| 500 nm | 12.60 | |
|
| 520 nm | 12.10 | |
|
| 540 nm | 11.70 | |
|
| 546 nm | 11.60 | |
|
| 560 nm | 11.50 | |
|
| 580 nm | 11.20 | |
|
| 589 nm | 11.10 | |
|
| 600 nm | 11.00 | |
|
| 620 nm | 11.00 | |
|
| 640 nm | 10.90 | |
|
| 650 nm | 10.90 | |
|
| 660 nm | 10.90 | |
|
| 680 nm | 10.90 | |
|
| 700 nm | 11.00 | |
Calculated Relative Intensity Colors of Putzite in Air
| RelativeIntensity | 0% | 40% | 80% | 100% | 120% | 160% | 200% | 240% | 280% | 320% | 340% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Relative Intensity Colors of Putzite in Oil
| RelativeIntensity | 0% | 80% | 100% | 160% | 240% | 320% | 400% | 480% | 560% | 640% | 720% | 770% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Properties of Putzite
Electron Density:
Bulk Density (Electron Density)=5.28 gm/cc
note: Specific Gravity of Putzite =5.79 gm/cc.
Fermion Index:
Fermion Index = 0.0075858685
Boson Index = 0.9924141315
Photoelectric:
PEPutzite = 118.80 barns/electron
U=PEPutzite x rElectron Density= 627.05 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Putzite is Not Radioactive
Putzite Classification
Dana Class:
02.05.10.01 (02)Sulfides - Including Selenides and Tellurides
(02.05)where Am Bn Xp, with (m+n):p=3:2
(02.05.10)Dana Group
02.05.10.01 Putzite! (Cu4.7Ag3.3)GeS6 F43m 4 3m
02.05.10.02 Calvertite! Cu5Ge0.5S4 F m3m, F 432, or F43m Cubic
Strunz Class:
02.BA.35 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)
02.BA -With Cu, Ag, Au
02.BA.35 Argyrodite Ag8GeS6 Pna2 mm2
02.BA.35 Canfieldite Ag8SnS6 P na21 mm2
02.BA.35 Putzite! (Cu4.7Ag3.3)GeS6 F43m 4 3m
Other Putzite Information
References:
NAME( CanMin, 42:1757) PHYS. PROP.(CanMin, 42:1757) OPTIC PROP.(CanMin, 42:1757)
See Also:
Links to other databases for Putzite :
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
Search for Putzite using:
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Mineral News Website Link
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Ask about Putzite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol
Print or Cut-and-Paste your Putzite Specimen Label here :
Putzite
(Cu4.7Ag3.3)GeS6
Dana No: 02.05.10.01 Strunz No: 02.BA.35
Locality:
Notes: