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Pizgrischite

Formula:
Cu
 
17
Bi
 
17
S
 
35
System:MonoclinicColour:Lead grey
Lustre:Metallic
Name:Named after type locality.


Related to cuprobismutite.

Classification of Pizgrischite

IMA status:Approved 2001
Nickel-Strunz 10th (pending) edition ID: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
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Type Occurrence of Pizgrischite

Type Locality:Piz Grisch, Ferrera Valley, Hinterrhein Valley, Grischun (Grisons; Graubünden), Switzerland
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:
TetrahedriteSphaleritePyriteEmplectiteChalcopyrite
Bismuthinite-Aikinite series

Physical Properties of Pizgrischite

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

Crystallography of Pizgrischite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m (B1 1 2/m) [C2/m] {C1 2/m 1}
Cell Parameters:a = 35.054Å, b = 3.91123Å, c = 43.192Å
β = 96.713°
Ratio:a:b:c = 8.962 : 1 : 11.043
Unit Cell Volume:V 5,881.21 ų (Calculated from Unit Cell)
Twinning:Abundant polysynthetic twinning on (010).
X-Ray Powder Diffraction:
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)

Optical Data of Pizgrischite

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%


Graph shows reflectance levels at different wavelengths (in nm). 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 Pizgrischite

Formula:
Cu
 
17
Bi
 
17
S
 
35
Essential elements:Bi, Cu, S
All elements listed in formula:Bi, Cu, S

Relationship of Pizgrischite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.JA.05eBenjaminite
(Ag,Cu)
 
3
(Bi,Pb)
 
7
S
 
12
2.JA.05gBorodaevite
Ag
 
5
(Bi,Pb,Fe)
 
8
(Sb,Bi)
 
2
S
 
17
2.JA.05aCupropavonite
AgCu
 
2
PbBi
 
5
S
 
10
2.JA.05aKitaibelite
Ag
 
10
PbBi
 
30
S
 
51
2.JA.05iLivingstonite
HgSb
 
4
S
 
8
2.JA.05dMakovickyite
Ag
 
1.5
Bi
 
5.5
S
 
9
2.JA.05fMummeite
Ag
 
2
CuPbBi
 
6
S
 
13
2.JA.05aPavonite
(Ag,Cu)(Bi,Pb)
 
3
S
 
5
2.JA.05bGrumiplucite
HgBi
 
2
S
 
4
2.JA.05hMozgovaite
PbBi
 
4
(S,Se)
 
7
2.JA.05dCupromakovickyite
Cu
 
8
Pb
 
4
Ag
 
2
Bi
 
18
S
 
36
2.JA.05cKudriavite
(Cd,Pb)Bi
 
2
S
 
4
2.JA.05aIMA2005-036
Ag
 
3
Cu
 
8
Pb
 
4
Bi
 
19
S
 
38
2.JA.10aCuprobismutite
Cu
 
10
Bi
 
12
S
 
23
2.JA.10cHodrušhite
Cu
 
8
Bi
 
12
S
 
22
2.JA.10ePadĕraite
Cu
 
5.9
Ag
 
1.3
Pb
 
1.6
Bi
 
11.2
S
 
22
2.JA.10bKupčíkite
(Cu,Fe)
 
4
Bi
 
5
S
 
10
2.JA.15Schapbachite
AgBiS
 
2
2.JA.15Cuboargyrite
AgSbS
 
2
2.JA.20Bohdanowiczite
AgBiSe
 
2
2.JA.20Matildite
AgBiS
 
2
2.JA.20Volynskite
AgBiTe
 
2

Other Names for Pizgrischite

Synonyms:
IMA2001-002
Other Languages:

Other Information

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

References for Pizgrischite

Reference List:Roth, Ph. (2007): Minerals first discovered in Switzerland and minerals named after Swiss individuals. Philippe Roth, Ed., Zurich, 239 pp.

Meisser, N. (2007): Ein neues Mineral aus Graubünden. Schweizer Strahler, 2/2007, 14-17.

Articles/Blogs about Pizgrischite

Internet Links for Pizgrischite

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    Localities for Pizgrischite

    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Hinterrhein Valley
        • Ferrera Valley
    Roth, Ph. (2007): Minerals first discovered in Switzerland and minerals named after Swiss individuals. Philippe Roth, Ed., Zurich, 239 pp. N. MEISSER, et al. Pizgrischite, (Cu,Fe)Cu14PbBi17S35, a new sulfosalt from the Swiss Alps: description, crystal structure and occurrence (MS#3589, 08/03/2007), Canadian Mineralogist, accepted.
    Mineral and/or Locality
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