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Ralphcannonite

A valid IMA mineral species
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03172050017271952239972.jpg
Ralphcannonite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02162620017271952243674.jpg
Ralphcannonite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
03172050017271952239972.jpg
Ralphcannonite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02162620017271952243674.jpg
Ralphcannonite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
00400080017271952259521.jpg
Ralphcannonite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02162620017271952243674.jpg
Ralphcannonite, etc.

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

03820550017271952259633.jpg
Ralph Cannon
Formula:
AgZn2TlAs2S6
Colour:
Black
Lustre:
Metallic
Hardness:
2 - 2½
Specific Gravity:
4.927 (Calculated)
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.


Unique IdentifiersHide

Mindat ID:
46522
Long-form identifier:
mindat:1:1:46522:1

IMA Classification of RalphcannoniteHide

Classification of RalphcannoniteHide

Strunz-mindat (2026):
2.GA.40

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
A : Neso-sulfarsenites, etc. without additional S

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
RcnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of RalphcannoniteHide

Lustre:
Metallic
Colour:
Black
Streak:
Black
Hardness:
2 - 2½ on Mohs scale
Hardness:
VHN30=116 - 128 kg/mm2 - Vickers
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
4.927 g/cm3 (Calculated)

Optical Data of RalphcannoniteHide

Anisotropism:
Very weak, greyish to light blue rotation tints
Reflectivity:
WavelengthR1 (%)R2 (%)
471nm25.8%27.1%
548nm25.2%26.6%
586nm24.6%25.8%
652nm23.9%24.8%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 27.1%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Greyish
Internal Reflections:
Very weak

Chemistry of RalphcannoniteHide

Mindat Formula:
AgZn2TlAs2S6
Element Weights:
Element% weight
Tl26.028 %
S24.501 %
As19.082 %
Zn16.652 %
Ag13.737 %

Calculated from ideal end-member formula.
Elements listed:
Ag, As, S, Tl, Zn - search for minerals with similar chemistry

Crystallography of RalphcannoniteHide

Crystal System:
Tetragonal
Class (H-M):
42m - Scalenohedral
Space Group:
I42m
Setting:
I42m
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

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of RalphcannoniteHide

Type Locality:
ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
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:
BaryteDufrénoysiteHatchiteRealgar
Reference:
Bindi, Luca, Biagioni, Cristian, Raber, Thomas, Roth, Philippe, Nestola, Fabrizio (2015) Ralphcannonite, AgZn2TlAs2S6, a new mineral of the routhierite isotypic series from Lengenbach, Binn Valley, Switzerland. Mineralogical Magazine, 79 (5) 1089-1098 doi:10.1180/minmag.2015.079.5.05

Synonyms of RalphcannoniteHide

Other Language Names for RalphcannoniteHide

Relationship of Ralphcannonite to other SpeciesHide

Member of:
Routhierite Group
Other Members of Routhierite Group:
ArsiccioiteAgHg2Tl(As,Sb)2S6Tet. 42m : I42m
FerrostalderiteCuFe2TlAs2S6Tet. 42m : I42m
RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 42m : I42m
StalderiteTl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6Tet. 42m : I42m
'Unnamed (Ag-Fe endmember of Routhierite Group)'AgFe2TlAs2S6

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Ralphcannonite associated with DufrénoysitePb2As2S5
1 photo of Ralphcannonite associated with SartoritePbAs2S4

Related Minerals - Strunz-mindat GroupingHide

2.GA.PyradoketositeAg3SbS3Mon. 2/m
2.GA.ArsiccioiteAgHg2Tl(As,Sb)2S6Tet. 42m : I42m
2.GA.EckeriteAg2CuAsS3Mon. 2/m : B2/b
2.GA.05ProustiteAg3AsS3Trig. 3m(32/m) : R3c
2.GA.05PyrargyriteAg3SbS3Trig. 3m : R3c
2.GA.10XanthoconiteAg3AsS3Mon. 2/m : B2/b
2.GA.10PyrostilpniteAg3SbS3Mon. 2/m : P21/b
2.GA.15SamsoniteAg4MnSb2S6Mon. 2/m : P21/m
2.GA.20BytíziteCu3SbSe3Orth. mmm(2/m2/m2/m) : Pnma
2.GA.20SkinneriteCu3SbS3Mon. 2/m : P21/b
2.GA.20WitticheniteCu3BiS3Orth. 222 : P212121
2.GA.25LapieiteNiCuSbS3Orth. 222 : P212121
2.GA.25LisiguangitePtCuBiS3Orth. 222 : P212121
2.GA.25MalyshevitePdCuBiS3Orth. mmm(2/m2/m2/m) : Pmmm
2.GA.25RoterbäritePdBiCuSe3Orth. 222 : P212121
2.GA.25MückeiteNiCu(Bi,Sb)S3Orth. 222 : P212121
2.GA.30AktashiteCu6Hg3As4S12Trig. 3 : R3
2.GA.30NowackiiteCu6Zn3As4S12Trig. 3 : R3
2.GA.30ZhengminghuaiteCu6Fe3As4S12Trig. 3 : R3
2.GA.30GruzdeviteCu6Hg3Sb4S12Trig. 3 : R3
2.GA.35LaffittiteAgHgAsS3Mon. 2/m
2.GA.40'Unnamed (Ag-Fe endmember of Routhierite Group)'AgFe2TlAs2S6
2.GA.40RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 42m : I42m
2.GA.40StalderiteTl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6Tet. 42m : I42m
2.GA.40FerrostalderiteCuFe2TlAs2S6Tet. 42m : I42m
2.GA.45ErniggliiteTl2SnAs2S6Trig. 3 : P3
2.GA.50CerromojoniteCuPbBiSe3Orth.
2.GA.50SeligmannitePbCuAsS3Orth. mmm(2/m2/m2/m) : Pmmn
2.GA.50SoučekiteCuPbBi(S,Se)3Orth. mm2
2.GA.50'Unnamed (Pb-Cu-Bi Selenide)'PbCuBiSe3
2.GA.50BournonitePbCuSbS3Orth. mm2 : Pmn21
2.GA.55EldragóniteCu6BiSe4(Se2) Orth. mmm(2/m2/m2/m)

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.

Internet Links for RalphcannoniteHide

References for RalphcannoniteHide

Localities for RalphcannoniteHide

Showing 1 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
        • Fäld
Williams et al. (2015) +1 other reference
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