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Philrothite

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Philippe Roth 2007
Formula:
TlAs3S5
Lustre:
Metallic
Hardness:
3 - 3½
Crystal System:
Monoclinic
Member of:
Name:
Named in honour of Philippe Roth (b. 1963), geophysicist and head of the 'Forschungsgemeinschaft Lengenbach'. He is a well known mineral expert on the Lengenbach minerals.
The N = 4 homologue of the sartorite homologous series.

Compare also Unnamed (Tl-Sb-As Sulphide).




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Classification of PhilrothiteHide

Approved
Approval Year:
2013

Physical Properties of PhilrothiteHide

Metallic
Transparency:
Opaque
Streak:
Dark brown streak
Hardness:
3 - 3½ on Mohs scale
Comment:
(VHN25) is 128 kg/mm2 (range: 120–137)
Tenacity:
Brittle

Optical Data of PhilrothiteHide

Type:
Anisotropic
Anisotropism:
Anisotropic with grey to bluish rotation tints (Under crossed polars)
Pleochroism:
Weak
Comments:
Weakly pleochroic from dark grey to light grey

Chemical Properties of PhilrothiteHide

Formula:
TlAs3S5

Crystallography of PhilrothiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 8.013(2) Å, b = 24.829(4) Å, c = 11.762(3) Å
β = 132.84(2)°
Ratio:
a:b:c = 0.323 : 1 : 0.474
Unit Cell V:
1715.9 ų
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
12.4145(52)
3.6768(100)
3.4535(45)
3.0150(46)
2.8941(52)
2.7685(76)
2.7642(77)
2.3239(52)

Type Occurrence of PhilrothiteHide

General Appearance of Type Material:
Crystals up to 200 μm across on realgar
Associated Minerals at Type Locality:

Synonyms of PhilrothiteHide

Other Language Names for PhilrothiteHide

Relationship of Philrothite to other SpeciesHide

Member of:
Other Members of this group:
ArgentobaumhaueriteAg1.5Pb22As33.5S72Tric. 1 : P1
ArgentodufrénoysiteAg3Pb26As35S80Tric. 1 : P1
ArgentoliveingiteAgxPb40-2xAs48+xS112Tric. 1 : P1
BarikaiteAg3Pb10(Sb8As11)S40Mon. 2/m : P21/b
BaumhaueritePb12As16S36Tric. 1 : P1
BernarlottiitePb6(As5Sb3)S18Tric. 1 : P1
BoscardiniteTlPb4(Sb7As2)S18Tric. 1 : P1
Carducciite(Ag2Sb2)Pb12(As,Sb)16S40Mon. 2/m : P21/b
DufrénoysitePb2As2S5Mon. 2 : P21
ÉcrinsiteAgTl3Pb4As11Sb9S36Tric. 1 : P1
EnneasartoriteTl6Pb32As70S140Mon. 2/m : P21/b
GuettarditePbAsSbS4Mon. 2/m : P21/b
HendekasartoriteTl2Pb48As82S172Mon. 2/m : P21/b
HeptasartoriteTl7Pb22As55S108Mon. 2/m : P21/b
HyršlitePb8As10Sb6S32Mon. 2 : P21
IncomsartoriteTl6Pb144As246S516Mon. 2/m
LiveingitePb9As13S28Mon.
ParapierrotiteTlSb5S8Mon. m
PierrotiteTl2(Sb,As)10S16Orth. mm2 : Pna21
PolloneiteAgPb46As26Sb23S120Mon. 2 : P21
RathiteAg2Pb12-xTlx/2As18+x/2S40Mon. 2/m : P21/b
SartoritePbAs2S4Mon. 2/m : P21/m
Twinnite Pb0.8Tl0.1Sb1.3As0.8S4Mon. 2/m
VeenitePb2(Sb,As)2S5Mon. 2 : P21

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 PhilrothiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bindi, L., Nestola, F., Makovicky, E., Guastoni, A., de Battisti, L. (2014): Tl-bearing sulfosalt from the Lengenbach quarry, Binn valley, Switzerland: Philrothite, TlAs3S5. Mineralogical Magazine, 78, 1-9.

Internet Links for PhilrothiteHide

Localities for PhilrothiteHide

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., Nestola, F., Makovicky, E., Guastoni, A., de Battisti, L. (2014): Tl-bearing sulfosalt from the Lengenbach quarry, Binn valley, Switzerland: Philrothite, TlAs3S5. Mineralogical Magazine, 78, 1-9.
Mineral and/or Locality  
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