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Tubulite

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About TubuliteHide

Formula:
Ag2Pb22Sb20S53
Colour:
Black
Lustre:
Metallic
Crystal System:
Monoclinic
Name:
Named after its characteristic tubular morphology.
A characteristic of this mineral is its peculiar tubular morphology. On the origin of the tubes, Moëlo et al (2014) propose that this is caused by capillary forces acting on very thin lamellar crystallites around gas bubbles or liquid droplets.

The unit cell of tubulite is very close to those of sterryite and parasterryite.

Compare 'UM1979-14-S:AgPbSb'.


Classification of TubuliteHide

Approved
Approval Year:
2012
2.JB.35f

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.5.22.

3 : SULFOSALTS
5 : 2.5 < ø < 3

Physical Properties of TubuliteHide

Metallic
Transparency:
Translucent
Colour:
Black
Comment:
Thin tubes transmit red light.

Chemical Properties of TubuliteHide

Formula:
Ag2Pb22Sb20S53
IMA Formula:
Ag2Pb22Sb20S53

Crystallography of TubuliteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Pb
Setting:
Pc
Cell Parameters:
a = 4.132(2) Å, b = 43.1(2) Å, c = 27.4(1) Å
β = 93.2(3)°
Ratio:
a:b:c = 0.096 : 1 : 0.636
Unit Cell V:
4872 ų
Z:
2
Morphology:
micro-tubes; hair-like
Comment:
Uncertain: Pc or P2/c or P21/c

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.32 (45)
3.99 (35)
3.69 (60)
3.36 (100)
3.28 (55)
2.99 (55)
2.912 (55)
2.063 (75)

Type Occurrence of TubuliteHide

General Appearance of Type Material:
It forms very thin perfect micro-tubes, 100 to 600 micron in length, 40 to 100 micron in diameter, and only 1 to 2 micron in thickness; At Biò: hairlike
Place of Conservation of Type Material:
Museum of Mineralogy of the Ecole Nationale Supérieure des Mines de Paris, Paris, France, catalogue number M 82939

Museo Regionale di Scienze Naturali, Torino, Italy, catalogue number 15905
Geological Setting of Type Material:
Gangue of quartz, baryte and carbonates (At Le Rivet)
Associated Minerals at Type Locality:

Synonyms of TubuliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Boulangerite6 photos of Tubulite associated with Boulangerite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.JB.Andorite VIAgPbSb3S6Orth. mm2 : Pmn21
2.JB.05DiaphoriteAg3Pb2Sb3S8Mon. 2/m : P21/b
2.JB.10CosalitePb2Bi2S5Orth. mmm (2/m 2/m 2/m)
2.JB.15FreieslebeniteAgPbSbS3Mon. 2/m : P21/b
2.JB.15MarriteAgPbAsS3Mon. 2/m : P21/b
2.JB.20CannizzaritePb48Bi56S132Mon. 2/m : P21/m
2.JB.20WittitePb9Bi12(S,Se)27Mon.
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/m
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68Mon.
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon.
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth.
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22Mon. 2/m : B2/m
2.JB.25hWeibullitePb5Bi8Se7S11Orth.
2.JB.25bFelbertaliteCu2Pb6Bi8S19Mon. 2/m : B2/m
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5Mon. 2/m : B2/m
2.JB.25fÁngelaiteCu2AgPbBiS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25iCuproneyiteCu7Pb27Bi25S68Mon. 2/m : B2/m
2.JB.30aGeocronitePb14(Sb,As)6S23Mon. 2/m : P21/m
2.JB.30aJordanitePb14(As,Sb)6S23Mon. 2/m : P21/m
2.JB.30bKirkiitePb10Bi3As3S19Mon. 2/m : P21/m
2.JB.30cTsugaruitePb4As2S7Orth.
2.JB.35cPillaitePb9Sb10S23ClO0.5Mon. 2/m : B2/m
2.JB.35aZinkenitePb9Sb22S42Hex. 6 : P63
2.JB.35bScainiitePb14Sb30S54O5Mon. 2/m : B2/m
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6Mon. 2/m : B2/m
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)Mon. 2/m : B2/m
2.JB.40bAschamalmitePb6Bi2S9Mon. 2/m
2.JB.40aBursaitePb5Bi4S11 (?)Orth.
2.JB.40bEskimoiteAg7Pb10Bi15S36Mon.
2.JB.40aFizélyiteAg5Pb14Sb21S48 Mon. 2/m
2.JB.40aGustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
2.JB.40aLillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
2.JB.40cOurayiteAg3Pb4Bi5S13Orth.
2.JB.40aRamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
2.JB.40aRoshchiniteAg19Pb10Sb51S96Orth.
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
2.JB.40aTreasuriteAg7Pb6Bi15S32Mon.
2.JB.40aUchucchacuaiteAgMnPb3Sb5S12Orth. mmm (2/m 2/m 2/m) : Pmmm
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40aVikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
2.JB.40aXilingolitePb3Bi2S6Mon.
2.JB.40bHeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
2.JB.40UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40UM1988-06-S:AgBiCuHgPb(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aAndorite IVPb18Ag15Sb47S96Mon. 2 : P2
2.JB.55GratonitePb9As4S15Trig. 3m : R3m
2.JB.60MarrucciiteHg3Pb16Sb18S46Mon. 2/m : B2/m
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6Orth.

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 TubuliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes-Rouillon, M., Orlandi, P., Petit, P.E., Martini, B., Salvetti, A. (2012) Tubulite, IMA 2011-109. CNMNC Newsletter No. 13, June 2012, page 811; Mineralogical Magazine, 76, 807-817.
Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes, M.T., Orlandi, P., Petit, P.-E., Martini, B., Salvetti, A. (2014): Tubulite, Ag2Pb22Sb20S53, a new Pb-Ag-Sb sulfosalt from Le Rivet quarry, Peyrebrune ore field (Tarn, France) and Biò, Borgofranco mines, Borgofranco d’Ivrea (Piedmont, Italy). European Journal of Mineralogy, 25, 1017-1030.

Internet Links for TubuliteHide

Localities for TubuliteHide

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.
France (TL)
 
  • Occitanie
    • Tarn
      • Réalmont
        • Montredon-Labessonnié
Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes, M.T., Orlandi, P., Petit, P.-E., Martini, B., Salvetti, A. (2014): Tubulite, Ag2Pb22Sb20S53, a new Pb-Ag-Sb sulfosalt from Le Rivet quarry, Peyrebrune ore field (Tarn, France) and Biò, Borgofranco mines, Borgofranco d’Ivrea (Piedmont, Italy). European Journal of Mineralogy, 25, 1017-1030.
Italy (TL)
 
  • Piedmont
    • Torino Province
      • Canavese District
        • Borgofranco d'Ivrea
          • Biò
Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes-Rouillon, M., Orlandi, P., Petit, P.E., Martini, B., Salvetti, A. (2012) Tubulite, IMA 2011-109. CNMNC Newsletter No. 13, June 2012, page 811; Mineralogical Magazine, 76, 807-817.; Moëlo, Y., Pecorini, R., Ciriotti, M.E., Meisser, N., Caldes, M.T., Orlandi, P., Petit, P.-E., Martini, B., Salvetti, A. (2014): Tubulite, Ag2Pb22Sb20S53, a new Pb-Ag-Sb sulfosalt from Le Rivet quarry, Peyrebrune ore field (Tarn, France) and Biò, Borgofranco mines, Borgofranco d’Ivrea (Piedmont, Italy). European Journal of Mineralogy, 25, 1017-1030.
Mineral and/or Locality  
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