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Pizgrischite

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About PizgrischiteHide

Formula:
(Cu,Fe)Cu14PbBi17S35
Colour:
Lead grey
Lustre:
Metallic
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.


Classification of PizgrischiteHide

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

Physical Properties of PizgrischiteHide

Metallic
Transparency:
Opaque
Colour:
Lead grey
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on (001) and well-developed on (010)

Optical Data of PizgrischiteHide

Type:
Anisotropic
Anisotropism:
Weak
Reflectivity:
460 nmR1=40.6%R2=42%
540 nmR1=41.1%R2=43%
580 nmR1=41.1%R2=43.15%
640 nmR1=40.9%R2=43.4%

Reflectance graph
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
Colour in reflected light:
Dark Brown (in oil with ND=1.515)
Internal Reflections:
none observed

Chemical Properties of PizgrischiteHide

Formula:
(Cu,Fe)Cu14PbBi17S35
IMA Formula:
(Cu,Fe)Cu14PbBi17S34

Crystallography of PizgrischiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 35.054 Å, b = 3.91123 Å, c = 43.192 Å
β = 96.713°
Ratio:
a:b:c = 8.962 : 1 : 11.043
Unit Cell V:
5,881.21 ų (Calculated from Unit Cell)
Twinning:
Abundant polysynthetic twinning on (010).

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.36 (40)
4.08 (50)
3.904 (37)
3.585 (34)
3.120 (40)
3.104 (68)
2.759 (53)
2.752 (44)
1.956(100)

Type Occurrence of PizgrischiteHide

General Appearance of Type Material:
Thin lead-grey blades up to 1 cm, embedded in quartz.
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 PizgrischiteHide

Related Minerals - Nickel-Strunz GroupingHide

2.JA.05eBenjaminiteAg3Bi7S12Mon. 2/m : B2/m
2.JA.05gBorodaeviteAg5(Bi,Pb,Fe)8(Sb,Bi)2S17Mon.
2.JA.05aCupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5 Mon. 2/m : B2/m
2.JA.05aKitaibeliteAg10PbBi30S51
2.JA.05iLivingstoniteHgSb4S6(S2)Mon. 2/m : B2/b
2.JA.05dMakovickyiteCu1.12Ag0.81Pb0.27Bi5.35S9Mon. 2/m
2.JA.05fMummeiteCu0.58Ag3.11Pb1.10Bi6.65S13Mon.
2.JA.05aPavoniteAgBi3S5Mon. 2/m : B2/m
2.JA.05bGrumipluciteHgBi2S4Mon. 2/m : B2/m
2.JA.05hMozgovaitePbBi4(S,Se)7Orth.
2.JA.05dCupromakovickyiteCu4AgPb2Bi9S18Mon. 2/m : B2/m
2.JA.05cKudriavite(Cd,Pb)Bi2S4Mon. 2/m : B2/m
2.JA.05aCupromakopavoniteAg3Cu8Pb4Bi19S38Mon. 2/m : B2/m
2.JA.05DantopaiteCu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11Mon. 2/m : B2/m
2.JA.10aCuprobismutiteCu8AgBi13S24Mon. 2/m : B2/m
2.JA.10cHodrušiteCu8Bi12S22Mon.
2.JA.10ePadĕraiteCu7[(Cu,Ag)0.33Pb1.33Bi11.33]S22Mon.
2.JA.10bKupčíkiteCu3.4Fe0.6Bi5S10Mon. 2/m : B2/m
2.JA.15SchapbachiteAg0.4Pb0.2Bi0.4SIso.
2.JA.15CuboargyriteAgSbS2Iso. m3m (4/m 3 2/m)
2.JA.20BohdanowicziteAgBiSe2Trig. 3m (3 2/m) : P3m1
2.JA.20MatilditeAgBiS2Trig. 3m (3 2/m) : P3m1
2.JA.20VolynskiteAgBiTe2Orth.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for PizgrischiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
The Canadian Mineralogist; October 2007; v. 45; no. 5; p. 1229-1245
Roth, Ph. (2007) Minerals first discovered in Switzerland and minerals named after Swiss individuals. Philippe Roth, Ed., Zurich: 239 pp.
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.
Meisser, N. (2007) Ein neues Mineral aus Graubünden. Schweizer Strahler: 2/2007: 14-17.

Internet Links for PizgrischiteHide

Localities for PizgrischiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Switzerland (TL)
 
  • Grischun (Grisons; Graubünden)
    • Hinterrhein Valley
      • Ferrera Valley
        • Ausserferrera
Roth, Ph. (2007): Minerals first discovered in Switzerland and minerals named after Swiss individuals. Philippe Roth, Ed., Zurich, 239 pp.; 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.
Mineral and/or Locality  
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