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Ferrostalderite

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Formula:
CuFe2TlAs2S6
Colour:
Black
Lustre:
Metallic
Crystal System:
Tetragonal
Name:
For it's relation to stalderite.
The iron analogue of stalderite. Chemically similar to ferrovoronstovite.

Structure and crystallochemistry details (Biagioni et al., 2016): Cu present in the M1 and Zn in M2 site; the framework is built of (Cu,Fe)-centered tetrahedra and has channels (parallel to [001]) where dissimetric TlS6 and (As,Sb)S3 polyhedra reside.


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Classification of FerrostalderiteHide

Approved
Approval Year:
2014

Physical Properties of FerrostalderiteHide

Metallic
Transparency:
Opaque
Colour:
Black

Chemical Properties of FerrostalderiteHide

Formula:
CuFe2TlAs2S6

Crystallography of FerrostalderiteHide

Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
I4 2m
Cell Parameters:
a = 9.8786(5) Å, c = 10.8489(8) Å
Ratio:
a:c = 1 : 1.098
Unit Cell V:
1058.71 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.092(70)
3.493(23)
3.396(35)
3.124(17)
2.937(100)
2.656(19)
2.470(19)
2.435(33)
Comments:
From Type Description.

Type Occurrence of FerrostalderiteHide

General Appearance of Type Material:
Crystals, equant to prismatic, up to 50 µm
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collection of the Museo di Storia Naturale, Università di Firenze, Via La Pira 4, Firenze, Italy, catalogue number 3148/I
Associated Minerals at Type Locality:

Synonyms of FerrostalderiteHide

Other Language Names for FerrostalderiteHide

Relationship of Ferrostalderite to other SpeciesHide

Other Members of this group:
ArsiccioiteAgHg2Tl(As,Sb)2S6Tet. 4 2m : I4 2m
RalphcannoniteAgZn2TlAs2S6Tet. 4 2m : I4 2m
RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 4 2m : I4 2m
StalderiteTl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6Tet.

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 FerrostalderiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bindi, L., Biagioni, C., Nestola, F., Cannon, R., Roth, P. Raber, T. (2015) Ferrostalderite, IMA 2014-090. CNMNC Newsletter No. 24, April 2015, page 248. Mineralogical Magazine: 79: 247-251.
Biagioni, C., Bindi, L., Nestola, F., Cannon, R., Roth, P., Raber, T. (2016) Ferrostalderite, CuFe2TlAs2S6, a new mineral from Lengenbach, Switzerland: occurrence, crystal structure, and emphasis on the role of iron in sulfosalts. Mineralogical Magazine: 80: 175-186.

Internet Links for FerrostalderiteHide

Localities for FerrostalderiteHide

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)
 
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Bindi, L., Biagioni, C., Nestola, F., Cannon, R., Roth, P. and Raber, T. (2015) Ferrostalderite, IMA 2014-090. CNMNC Newsletter No. 24, April 2015, page 248; Mineralogical Magazine, 79, 247-251;Biagioni, C., Bindi, L., Nestola, F., Cannon, R., Roth, P., Raber, T. (2016) Ferrostalderite, CuFe2TlAs2S6, a new mineral from Lengenbach, Switzerland: occurrence, crystal structure, and emphasis on the role of iron in sulfosalts. Mineralogical Magazine: 80: 175-186
Mineral and/or Locality  
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