Pizgrischite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Pizgrischite
View towards the type locality
Piz Grisch, Ausserferrera, Ferrera, Viamala Region, Grisons, Switzerland
Piz Grisch, Ausserferrera, Ferrera, Viamala Region, Grisons, Switzerland
Formula:
(Cu,Fe)Cu14PbBi17S35
Colour:
Lead grey
Lustre:
Metallic
Hardness:
3 - 3½
Specific Gravity:
6.58 (Calculated)
Crystal System:
Monoclinic
Name:
Named after type locality.
Pizgrischite belongs to the cuprobismutite series of bismuth sulfosalts but, sensu stricto, it is not a homologue of cuprobismutite.
Unique Identifiers
Mindat ID:
11109
Long-form identifier:
mindat:1:1:11109:2
GUID
(UUID V4):
(UUID V4):
11abc802-6f64-43d5-acc2-f088b1719bdb
Classification of Pizgrischite
Approved
Approval year:
2001
First published:
2007
2.JA.10d
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Piz | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Pizgrischite
Metallic
Transparency:
Opaque
Colour:
Lead grey
Streak:
Grey-black
Hardness:
3 - 3½ on Mohs scale
Hardness:
VHN100=174 - 202 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on (001) and well-developed on (010)
Perfect on (001) and well-developed on (010)
Density:
6.58 g/cm3 (Calculated)
Optical Data of Pizgrischite
Anisotropism:
Weak
Reflectivity:
Wavelength | R1 | R2 | imR1 | imR2 |
---|---|---|---|---|
400nm | 39.9% | 40.8% | 24.80% | 25.80% |
420nm | 40.2% | 41.2% | 25.00% | 26.00% |
440nm | 40.4% | 41.5% | 25.05% | 26.20% |
460nm | 40.6% | 42.0% | 25.20% | 26.50% |
470nm | 40.7% | 42.1% | 25.30% | 26.75% |
480nm | 40.8% | 42.4% | 25.35% | 27.00% |
500nm | 41.0% | 42.7% | 25.40% | 27.15% |
520nm | 41.1% | 42.9% | 25.40% | 27.25% |
540nm | 41.1% | 43.0% | 25.45% | 27.40% |
546nm | 41.2% | 43.1% | 25.40% | 27.40% |
560nm | 41.1% | 43.1% | 25.40% | 27.45% |
580nm | 41.1% | 43.1% | 25.30% | 27.45% |
589nm | 41.2% | 43.3% | 25.40% | 27.50% |
600nm | 41.1% | 43.2% | 25.30% | 27.55% |
620nm | 41.1% | 43.4% | 25.25% | 27.55% |
640nm | 40.9% | 43.4% | 25.05% | 27.60% |
650nm | 40.7% | 43.3% | 25.00% | 27.55% |
660nm | 40.5% | 43.2% | 24.85% | 27.50% |
680nm | 40.3% | 43.1% | 24.70% | 27.30% |
700nm | 40.1% | 43.0% | 24.60% | 27.15% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 43.4%.
R1 shown in black, R2 shown in red, imR1 shown in green, imR2 shown in blue
Colour in reflected light:
Dark brown (in oil with ND=1.515)
Internal Reflections:
None observed
Chemical Properties of Pizgrischite
Formula:
(Cu,Fe)Cu14PbBi17S35
IMA Formula:
(Cu,Fe)Cu14PbBi17S34
Crystallography of Pizgrischite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 35.054(2) Å, b = 3.91123(1) Å, c = 43.192(2) Å
β = 96.713(4)°
β = 96.713(4)°
Ratio:
a:b:c = 8.962 : 1 : 11.043
Unit Cell V:
5,881.21 ų (Calculated from Unit Cell)
Z:
4
Twinning:
Abundant polysynthetic twinning on (010).
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0006155 | Pizgrischite | Meisser N, Schenk K, Berlepsch P, Brugger J, Bonin M, Criddle A J, Thelin P, Bussy F (2007) Pizgrischite, (Cu,Fe)Cu14PbBi17S35, a new sulfosalt from the Swiss Alps: Description, crystal structure and occurrence The Canadian Mineralogist 45 1229-1245 | 2007 | Piz Grisch Mountain, Val Ferrera, Graubunden, Switzerland | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
5.36 Å | (40) |
4.08 Å | (50) |
3.904 Å | (37) |
3.585 Å | (34) |
3.120 Å | (40) |
3.104 Å | (68) |
2.759 Å | (53) |
2.752 Å | (44) |
1.956 Å | (100) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-? alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Pizgrischite
General Appearance of Type Material:
Thin lead-grey blades up to 1 cm, embedded in quartz.
Place of Conservation of Type Material:
Two holotype specimens: Museum of Geology, Lausanne (MGL), Switzerland. Sample MGL 58622 (isolated crystals) and sample MGL 53660 (polished
section).
Cotype: British Museum of Natural History, London, England.
section).
Cotype: British Museum of Natural History, London, England.
Geological Setting of Type Material:
Quartz vein embedded in gneisses.
Associated Minerals at Type Locality:
Reference:
Meisser, N., Schenk, K., Berlepsch, P., Brugger, J., Bonin, M., Criddle, A. J., Thelin, P., Bussy, F. (2007) Pizgrischite, (Cu,Fe)Cu14PbBi17S35, a new sulfosalt from the Swiss Alps: description, crystal structure and occurrence. Canadian Mineralogist: 45: 1229-1245.
Synonyms of Pizgrischite
Related Minerals - Strunz-mindat Grouping
2.JA. | Ferdowsiite | Ag8(Sb5As3)S16 |
2.JA. | Sangenaroite | Ag8(Sb8-xAsx)SΣ16 |
2.JA. | Luboržákite | Mn2AsSbS5 |
2.JA.05e | Benjaminite | Ag3Bi7S12 |
2.JA.05g | Borodaevite | Ag5(Bi,Pb,Fe)8(Sb,Bi)2S17 |
2.JA.05a | Cupropavonite | Cu0.9Ag0.5Pb0.6Bi2.5S5 |
2.JA.05i | Livingstonite | HgSb4S6(S2) |
2.JA.05d | Makovickyite | Cu1.12Ag0.81Pb0.27Bi5.35S9 |
2.JA.05f | Mummeite | Cu0.58Ag3.11Pb1.10Bi6.65S13 |
2.JA.05a | Pavonite | AgBi3S5 |
2.JA.05b | Grumiplucite | HgBi2S4 |
2.JA.05h | Mozgovaite | PbBi4S7 |
2.JA.05d | Cupromakovickyite | Cu4AgPb2Bi9S18 |
2.JA.05c | Kudriavite | (Cd,Pb)Bi2S4 |
2.JA.05a | Cupromakopavonite | Ag3Cu8Pb4Bi19S38 |
2.JA.05 | Dantopaite | Ag5Bi13S22 |
2.JA.10a | Cuprobismutite | Cu8AgBi13S24 |
2.JA.10c | Hodrušite | Cu8Bi12S22 |
2.JA.10e | Padĕraite | Cu7[(Cu,Ag)0.33Pb1.33Bi11.33]S22 |
2.JA.10b | Kupčíkite | Cu3.4Fe0.6Bi5S10 |
2.JA.15 | Schapbachite | Ag0.4Pb0.2Bi0.4S |
2.JA.15 | Cuboargyrite | AgSbS2 |
2.JA.20 | Bohdanowiczite | AgBiSe2 |
2.JA.20 | Matildite | AgBiS2 |
2.JA.20 | Volynskite | AgBiTe2 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Pizgrischite
mindat.org URL:
https://www.mindat.org/min-11109.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
References for Pizgrischite
Reference List:
Localities for Pizgrischite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Switzerland (TL) | |
|
Quick NavTopAbout PizgrischiteUnique IdentifiersClassification Mineral SymbolsPhysical Properties Optical Data Chemical Properties Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsStrunz-MindatOther InformationInternet Links References Localities Locality List
Piz Grisch, Ausserferrera, Ferrera, Viamala Region, Grisons, Switzerland