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Quadratite

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Lengenbach Quarry, Im Feld (Imfeld; Feld; Fäld), Binn Valley, Wallis (Valais), Switzerland
© Stephan Wolfsried

Show Quadratite Photos (7)
Formula:
Ag(Cd,Pb)AsS
 
3
System:TetragonalColour:Gray; reddish (laminae)
Lustre:MetallicHardness:3
Name:The name is derived from the conspicuous quadratic shape of the mineral.
This page provides mineralogical data about Quadratite.

Classification of Quadratite

IMA status:Approved
Strunz 8th edition ID:2/E.07-60
Nickel-Strunz 10th (pending) edition ID:2.GC.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
C : Poly-sulfarsenites
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Type Occurrence of Quadratite

Type Locality:Lengenbach Quarry, Im Feld (Imfeld; Feld; Fäld), Binn Valley, Wallis (Valais), Switzerland

Physical Properties of Quadratite

Lustre:Metallic
Diaphaneity (Transparency):Translucent, Opaque
Colour:Gray; reddish (laminae)
Streak:Reddish-brown
Hardness (Mohs):3

Crystallography of Quadratite

Crystal System:Tetragonal

Chemical Properties of Quadratite

Formula:
Ag(Cd,Pb)AsS
 
3
Essential elements:Ag, As, Cd, S
All elements listed in formula:Ag, As, Cd, Pb, S

Relationship of Quadratite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.GC.05Hatchite
AgTlPbAs
 
2
S
 
5
2.GC.05Wallisite
(Cu,Ag)TlPbAs
 
2
S
 
5
2.GC.10Sinnerite
Cu
 
6
As
 
4
S
 
9
2.GC.15Watanabeite
Cu
 
4
(As,Sb)
 
2
S
 
5
2.GC.20Simonite
TlHgAs
 
3
S
 
6
2.GC.30Smithite
AgAsS
 
2
2.GC.35Trechmannite
AgAsS
 
2
2.GC.40aAleksite
PbBi
 
2
Te
 
2
S
 
2
2.GC.40bKochkarite
PbBi
 
4
Te
 
7
2.GC.40cPoubaite
PbBi
 
2
(Se,Te,S)
 
4
2.GC.40cRucklidgeite
(Bi,Pb)
 
3
Te
 
4
2.GC.40eBabkinite
Pb
 
2
Bi
 
2
(S,Se)
 
3
2.GC.40dSaddlebackite
Pb
 
2
Bi
 
2
Te
 
2
S
 
3
2.GC.45Tvalchrelidzeite
Hg
 
3
SbAsS
 
3
2.GC.50Mutnovskite
Pb
 
4
As
 
2
S
 
6
ICl

Other Names for Quadratite

Synonyms:
IMA1994-038
Other Languages:
German:Quadratit
Spanish:Quadratita

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 Quadratite

Reference List:Schweizerische mineralogische und petrographische Mitteilungen: 78: 489-494.

Internet Links for Quadratite

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  • Raman and XRD data at RRUFF project
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  • Quadratite details from Handbook of Mineralogy (PDF)
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    Localities for Quadratite

    Hide Locality List
    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.
    (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
     
    • Wallis (Valais)
      • Binn Valley
        • Im Feld (Imfeld; Feld; Fäld)
    		[AmMin 85:264]
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 4th Nov 2009 09:24:54