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Quadratite

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Photos of Quadratite (25)

Quadratite Gallery Search Photos of Quadratite

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Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Quadratite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

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About QuadratiteHide

Formula:

Ag(Cd,Pb)AsS₃

Colour:

Gray; reddish (laminae)

Lustre:

Metallic

Hardness:

Specific Gravity:

5.31 (Calculated)

Crystal System:

Tetragonal

Name:

The name is derived from the conspicuous quadratic shape of the mineral.

Type Locality:

ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

The Cd analogue of manganoquadratite.

Classification of QuadratiteHide

IMA status:

Approved

First published:

1998

Strunz 8th ed.:

2/E.07-60

Nickel-Strunz 10th (pending) ed.:

2.GC.25

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

Physical Properties of QuadratiteHide

Lustre:

Metallic

Transparency:

Translucent, Opaque

Colour:

Gray; reddish (laminae)

Streak:

Reddish-brown

Hardness:

3 on Mohs scale

Hardness:

VHN₁₀=52 - 72 kg/mm² - Vickers

Tenacity:

Flexible

Cleavage:

Perfect
Perfect {001} and distinct {110}

Comment:

Ductile to flexible in thin laminae

Density:

5.31 g/cm³ (Calculated)

Chemical Properties of QuadratiteHide

Formula:

Ag(Cd,Pb)AsS₃

IMA Formula:

AgCdAsS₃

Elements listed:

Ag, As, Cd, Pb, S - search for minerals with similar chemistry

Crystallography of QuadratiteHide

Crystal System:

Tetragonal

Cell Parameters:

a = 5.5229(4) Å, c = 33.399(5) Å

Ratio:

a:c = 1 : 6.047

Unit Cell V:

1018.8 Å³

Morphology:

Crystals tabular, showing a large {001}, with {103}, {104}, {111}, and {116}.

Twinning:

Rarely twinned along (016)

Crystal StructureHide

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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)
0019742	Quadratite	Bindi L, Spry P G, Bonazzi P, Makovicky E, Balic-Zunic T (2013) Quadratite, AgCdAsS3:Chemical composition, crystal structure and OD character American Mineralogist 98 242-247		2013	Lengenbach, Binntal, Switzerland	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Quadratite'
loop_
_publ_author_name
'Bindi L'
'Spry P G'
'Bonazzi P'
'Makovicky E'
'Balic-Zunic T'
_journal_name_full 'American Mineralogist'
_journal_volume 98 
_journal_year 2013
_journal_page_first 242
_journal_page_last 247
_publ_section_title
;
 Quadratite, AgCdAsS3:Chemical composition, crystal structure and OD character
;
_database_code_amcsd 0019742
_chemical_compound_source 'Lengenbach, Binntal, Switzerland'
_chemical_formula_sum 'Cd1.58 Ag1.994 Pb.426 As2 S6'
_cell_length_a 5.5229
_cell_length_b 5.5229
_cell_length_c 33.399
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1018.750
_exptl_crystal_density_diffrn      5.367
_symmetry_space_group_name_H-M 'P 43 2 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,x,1/4-z'
  '-y,x,3/4+z'
  '-x,y,-z'
  '-x,-y,1/2+z'
  '-y,-x,3/4-z'
  'y,-x,1/4+z'
  'x,-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
CdM1   0.24290   0.24290   0.12500   0.58000   0.02370
AgM1   0.24290   0.24290   0.12500   0.42000   0.02370
CdM2   0.73820   0.73820   0.12500   1.00000   0.02350
AgM3   0.74800   0.23600   0.03370   0.78700   0.02400
PbM3*   0.74000   0.24200   0.04170   0.21300   0.02400
As   0.25590   0.74430   0.04947   1.00000   0.02080
S1   0.22200   0.73640   0.11861   1.00000   0.02010
S2   0.66460   0.72490   0.04740   1.00000   0.02540
S3   0.23340   0.16200   0.04691   1.00000   0.02080
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
CdM1 0.02460 0.02460 0.02200 0.00100 -0.00010 0.00010
AgM1 0.02460 0.02460 0.02200 0.00100 -0.00010 0.00010
CdM2 0.02270 0.02270 0.02490 -0.00100 -0.00030 0.00030
AgM3 0.02470 0.02860 0.01900 -0.00120 -0.00100 0.00300
PbM3' 0.02470 0.02860 0.01900 -0.00120 -0.00100 0.00300
As 0.02060 0.02120 0.02050 -0.00100 -0.00070 0.00010
S1 0.02400 0.01800 0.01900 0.00200 0.00300 0.00200
S2 0.02800 0.02200 0.02600 0.00200 0.00400 -0.00100
S3 0.01600 0.03300 0.01400 0.00200 0.00300 0.00100

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.19 Å	(50)
2.77 Å	(100)
1.960 Å	(80)
1.679 Å	(70)
1.598 Å	(70)
1.274 Å	(60)

Type Occurrence of QuadratiteHide

Type Locality:

ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

General Appearance of Type Material:

Occurs as characteristic quadratic crystals, some of which are octagonal in shape, rarely to 1 mm

Place of Conservation of Type Material:

Natural History Museum in Basel, and in the Mineralogical Institute, University of Basel, Switzerland.

Associated Minerals at Type Locality:

Hatchite	Pyrite	Jordanite	Galena	Dolomite
Lengenbachite	Sphalerite

Reference:

Gräser, S., Lustenhouwer, W., Berlepsch, P. (1998) Quadratite Ag(Cd,Pb)(As,Sb)S3 - a new sulfide mineral from Lengenbach, Binntal (Switzerland). Schweizerische Mineralogische und Petrographische Mitteilungen: 78: 489-494.

Synonyms of QuadratiteHide

IMA1994-038

Other Language Names for QuadratiteHide

German:Quadratit

Spanish:Quadratita

Common AssociatesHide

Associated Minerals Based on Photo Data:

9 photos of Quadratite associated with Smithite	AgAsS₂
7 photos of Quadratite associated with Jordanite	Pb₁₄(As,Sb)₆S₂₃
2 photos of Quadratite associated with Greenockite	CdS
1 photo of Quadratite associated with Galena	PbS
1 photo of Quadratite associated with Seligmannite	PbCuAsS₃
1 photo of Quadratite associated with Marrite	AgPbAsS₃
1 photo of Quadratite associated with Wurtzite	(Zn,Fe)S

Related Minerals - Nickel-Strunz Grouping Hide

2.GC.05	Hatchite	AgTlPbAs₂S₅	Tric. 1 : P1
2.GC.05	Wallisite	(Cu,Ag)TlPbAs₂S₅	Tric.
2.GC.10	Sinnerite	Cu₆As₄S₉	Tric. 1 : P1
2.GC.15	Watanabeite	Cu₄(As,Sb)₂S₅	Orth.
2.GC.20	Simonite	TlHgAs₃S₆	Mon. 2/m
2.GC.25	Manganoquadratite	AgMnAsS₃	Tet. 4 2 2 : P4₃ 2 2
2.GC.30	Smithite	AgAsS₂	Mon. 2/m
2.GC.35	Trechmannite	AgAsS₂	Trig.
2.GC.40a	Aleksite	PbBi₂Te₂S₂	Trig.
2.GC.40b	Kochkarite	PbBi₄Te₇	Trig.
2.GC.40c	Poubaite	PbBi₂(Se,Te,S)₄	Trig.
2.GC.40c	Rucklidgeite	PbBi₂Te₄	Trig.
2.GC.40e	Babkinite	Pb₂Bi₂(S,Se)₃	Trig.
2.GC.40d	Saddlebackite	Pb₂Bi₂Te₂S₃	Hex.
2.GC.45	Tvalchrelidzeite	Hg₃SbAsS₃	Mon. 2/m
2.GC.50	Mutnovskite	Pb₄As₂S₆ICl	Orth. mmm (2/m 2/m 2/m) : Pnma

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 QuadratiteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Berlepsch P., Balić-Žunić, T., Makovicky, E. (1999) The superposition structure of quadratite Ag(Cd,Pb)AsS3. 1s. Det 30. Danske Krystallografmøde, Forskningscenter Risø 1999. Abstract 30.

Bindi, L., Spry, P. G., Bonazzi, P., Makovicky, E., Balić-Žunić, T. (2013) Quadratite, AgCdAsS3: Chemical composition, crystal structure and OD character. American Mineralogist: 98: 242-247.

Internet Links for QuadratiteHide

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https://www.mindat.org/min-7262.html
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External Links:

Look for Quadratite on Webmineral

Look for Quadratite on Wikipedia

Look for Quadratite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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Localities for QuadratiteHide

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)

Valais

Goms

Binn

Fäld

ⓘ Lengenbach Quarry (TL)

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Quadratite

About QuadratiteHide

Classification of QuadratiteHide

Physical Properties of QuadratiteHide

Chemical Properties of QuadratiteHide

Crystallography of QuadratiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Type Occurrence of QuadratiteHide

Synonyms of QuadratiteHide

Other Language Names for QuadratiteHide

Common AssociatesHide

Related Minerals - Nickel-Strunz GroupingHide

Other InformationHide

References for QuadratiteHide

Internet Links for QuadratiteHide

Localities for QuadratiteHide

Locality ListHide

Related Minerals - Nickel-Strunz Grouping Hide