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Ralphcannonite

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About RalphcannoniteHide

09080650014949934849439.jpg
Ralph Cannon
Formula:
AgZn2TlAs2S6
Colour:
Black
Lustre:
Metallic
Crystal System:
Tetragonal
Name:
Named for Ralph Cannon, Technical Head of the Lengenbach Research Community and Lengenbach minerals expert.
This page provides mineralogical data about Ralphcannonite.


Classification of RalphcannoniteHide

Approved
Approval Year:
2014

Physical Properties of RalphcannoniteHide

Metallic
Colour:
Black

Chemical Properties of RalphcannoniteHide

Formula:
AgZn2TlAs2S6
Emperical Formula (of original material):
Ag0.63(2)Cu0.25(2)Zn1.35(5)Fe0.47(1)Hg0.32(2)Tl0.97(3)[As1.97(6)Sb0.01(1)]Σ1.98(5)S6.03(8)

Crystallography of RalphcannoniteHide

Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
I4 2m
Setting:
I4 2m
Cell Parameters:
a = 9.861(2) Å, c = 11.125(3) Å
Ratio:
a:c = 1 : 1.128
Unit Cell V:
1081.8 ų
Z:
4
Morphology:
Equant, isometric to prismatic crystals, up to 50 μm.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020618RalphcannoniteBindi L, Biagioni C, Raber T, Roth T, Nestola F (2015) Ralphcannonite, AgZn2TlAs2S6, a new mineral of the routhierite isotypic series from Lengenbach, Binn Valley, Switzerland Mineralogical Magazine 79 1089-10982015Lengenbach quarry, Binn Valley, Wallis, Switzerland0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.100 Å(85)
3.471 Å(40)
3.118 Å(17)
2.954 Å(100)
2.656 Å(20)
2.583 Å(17)
2.465 Å(24)
2.460 Å(39)
Comments:
From Type Description.

Type Occurrence of RalphcannoniteHide

General Appearance of Type Material:
Metallic black equant, isometric to prismatic crystals, up to 50 μm.
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Universita` di Firenze, Via La Pira 4, Firenze, Italy, catalogue number 3145/I
Associated Minerals at Type Locality:

Synonyms of RalphcannoniteHide

Relationship of Ralphcannonite to other SpeciesHide

Other Members of this group:
ArsiccioiteAgHg2Tl(As,Sb)2S6Tet. 4 2m : I4 2m
FerrostalderiteCuFe2TlAs2S6Tet. 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.
Unnamed (Ag-Fe endmember of Routhierite Group)AgFe2TlAs2S6

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 RalphcannoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bindi, L., Biagioni, C., Raber, T., Roth, P. and Nestola, F. (2015) Ralphcannonite, IMA 2014-077. CNMNC Newsletter No. 23, February 2015, page 56; Mineralogical Magazine, 79, 51-58.
Bindi, L., Biagioni, C., Raber, T., Roth, P., Nestola, F. (2015): Ralphcannonite, AgZn2TlAs2S6, a new mineral of the routhierite isotypic series from Lengenbach, Binn Valley, Switzerland. Mineralogical Magazine, 79, 1089-1098.

Internet Links for RalphcannoniteHide

Localities for RalphcannoniteHide

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
Bindi, L., Biagioni, C., Raber, T., Roth, P. and Nestola, F. (2015) Ralphcannonite, IMA 2014-077. CNMNC Newsletter No. 23, February 2015, page 56; Mineralogical Magazine, 79, 51-58; Bindi, L., Biagioni, C., Raber, T., Roth, P., Nestola, F. (2015): Ralphcannonite, AgZn2TlAs2S6, a new mineral of the routhierite isotypic series from Lengenbach, Binn Valley, Switzerland. Mineralogical Magazine, 79, 1089-1098.
 
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