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Arsiccioite

A valid IMA mineral species
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About ArsiccioiteHide

Formula:
AgHg2Tl(As,Sb)2S6
Colour:
Red
Lustre:
Metallic, Sub-Metallic
Hardness:
2 - 2½
Specific Gravity:
5.989 (Calculated)
Crystal System:
Tetragonal
Name:
The name is for the type locality, Monte Arsiccio mine, Apuan Alps, Tuscany, Italy
Isostructural with:
Unique elements combination.

Structure details: (1) framework of (Hg,Ag)-centered tetrahedra (1 M1 + 2 M2); (2) channels || [001] wiht TlS6 and (As,Sb)S3 disymmetric polyhedra.

Derived from routhierite according to the substitution M1Cu+ + M2Hg2+M1Hg2+ + M2Ag+. This substitution obeys a steric constraint, with Ag+, the largest cation, entering the largest site, M2.


Unique IdentifiersHide

Mindat ID:
43935
Long-form identifier:
mindat:1:1:43935:0

IMA Classification of ArsiccioiteHide

Classification of ArsiccioiteHide

2.GA.

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

Physical Properties of ArsiccioiteHide

Metallic, Sub-Metallic
Transparency:
Opaque
Colour:
Red
Streak:
Orange
Hardness:
2 - 2½ on Mohs scale
Hardness:
VHN50=124 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
5.989 g/cm3 (Calculated)

Optical Data of ArsiccioiteHide

Anisotropism:
weak grey to bluish rotation tints
Reflectivity:
WavelengthR1 (%)R2 (%)
471nm29.0% 29.4%
548nm27.6% 28.3%
586nm26.1% 26.5%
652nm24.2% 24.6%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 29.4%.
R1 shown in black, R2 shown in red
Colour in reflected light:
yellowish-white in colour
Internal Reflections:
weak and deep red in colour
Pleochroism:
Non-pleochroic

Chemistry of ArsiccioiteHide

Mindat Formula:
AgHg2Tl(As,Sb)2S6
Element Weights:
Element% weight
Hg38.003 %
Tl19.361 %
S18.225 %
As14.194 %
Ag10.218 %

Calculated from ideal end-member formula.

Crystallography of ArsiccioiteHide

Crystal System:
Tetragonal
Class (H-M):
42m - Scalenohedral
Space Group:
I42m
Setting:
I42m
Cell Parameters:
a = 10.1386(6) Å, c = 11.3441(5) Å
Ratio:
a:c = 1 : 1.119
Unit Cell V:
1166.1 ų
Z:
4
Morphology:
Anhedral grains

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020024ArsiccioiteBiagioni C, Bonaccorsi E, Moelo Y, Orlandi P, Bindi L, D'Orazio M, Vezzoni S (2014) Mercury-arsenic sulfosalts from the Apuan Alps (Tuscany, Italy). II. Arsiccioite, AgHg2TlAs2S6, a new mineral from the Monte Arsiccio mine: occurrence, crystal structure and crystal chemistry of the routhierite isotypic series Mineralogical Magazine 78 101-1172014Monte Arsiccio mine, Apuan Alps, Tuscany, Italy0293
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 ArsiccioiteHide

General Appearance of Type Material:
As anhedral grains scattered in microcrystalline baryte
Place of Conservation of Type Material:
1) Museo di Storia Naturale, Universita` di Pisa, Via Roma 79, Calci (Pisa), Italy, catalogue number 19659.
2) Museo di Storia Naturale, Universita` degli Studi di Firenze, Florence, Italy, catalogue (# 3132/I).
Geological Setting of Type Material:
Baryte-pyrite-iron oxide ore deposit
Associated Minerals at Type Locality:

Synonyms of ArsiccioiteHide

Other Language Names for ArsiccioiteHide

German:Arsiccioit
Norwegian:Arsiccioitt

Relationship of Arsiccioite to other SpeciesHide

Other Members of Routhierite Group:
FerrostalderiteCuFe2TlAs2S6Tet. 42m : I42m
RalphcannoniteAgZn2TlAs2S6Tet. 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:
3 photos of Arsiccioite associated with AktashiteCu6Hg3As4S12
2 photos of Arsiccioite associated with ProtochabournéiteTl4-xPb2+2xSb20-x-yAsyS34 with 0.02(2) <= x <= 0.34(2), 5.71(9) <= y <= 6.69(9)
1 photo of Arsiccioite associated with Native SulphurS8
1 photo of Arsiccioite associated with RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6

Related Minerals - Strunz-mindat GroupingHide

2.GA.PyradoketositeAg3SbS3Mon. 2/m
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.40RalphcannoniteAgZn2TlAs2S6Tet. 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 ArsiccioiteHide

References for ArsiccioiteHide

Localities for ArsiccioiteHide

Showing 2 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.
Italy (TL)
 
  • Tuscany
    • Lucca Province
      • Stazzema
        • Sant'Anna di Stazzema
Williams et al. (2013) +1 other reference
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2020) +1 other reference
 
and/or  
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