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Fassinaite

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Formula:
Pb2(S2O3)(CO3)
Colour:
Colourless, white
Lustre:
Adamantine
Hardness:
1½ - 2
Specific Gravity:
6.084 (Calculated)
Crystal System:
Orthorhombic
Name:
Named after Bruno Fassina (b. 1943) Italian mineral collector, who discovered the mineral at the Trentini mine in 2009.
One of the very few thiosulphate minerals. The other Pb thiosulphates known: sidpietersite, steverustite, Unnamed (Pb Thiosulphate). Compare also 'UM1995-35-SO:FePb'.

May be visually similar to elongate anglesite.


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Classification of FassinaiteHide

Approved
Approval Year:
2011

Physical Properties of FassinaiteHide

Adamantine
Transparency:
Transparent, Translucent
Colour:
Colourless, white
Streak:
White
Hardness:
1½ - 2 on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
6.084 g/cm3 (Calculated)

Chemical Properties of FassinaiteHide

Formula:
Pb2(S2O3)(CO3)
IMA Formula:
Pb2(CO3)(S2O3)

Crystallography of FassinaiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 16.343(1) Å, b = 8.760(2) Å, c = 4.592(3) Å
Ratio:
a:b:c = 1.866 : 1 : 0.524
Unit Cell V:
657.4 ų
Z:
2
Morphology:
The crystals are acicular to prismatic [010], with a flattened diamond-shaped cross-section. The Austrian crystals are sufficiently well developed to allow determination of some of the crystal forms: the prism {101} is large and dominant, with a flat chisel-shaped {hk0} termination, possibly {110}. Small faces which are possibly {011} are rarely present. Further forms are minute and difficult to measure as they are commonly rounded.
Twinning:
None observed.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.410 (39)
4.381 (59)
4.080 (64)
3.504 (75)
3.108 (100)
2.986 (82)
2.952 (49)
2.736 (60)

Type Occurrence of FassinaiteHide

General Appearance of Type Material:
Radiating aggregates of acicular, colourless crystals up to 0.2 mm long.
Place of Conservation of Type Material:
Museum of Mineralogy of the Department of Geosciences at
the University of Padova, Italy, under catalogue number MMP M10008.
Geological Setting of Type Material:
The mineralization is linked to Mid-Triassic calc-alkaline magmatism. Hydrothermal fluids related to volcanism deposited sulphides, baryte and Fe- and Mn-bearing minerals at the boundary between Ladinic volcanites and limestone of the Mount Spitz Formation. Supergene minerals including sulphates, carbonates and arsenates of Zn, Pb and Cu are very common.

Synonyms of FassinaiteHide

Other Language Names for FassinaiteHide

German:Fassinait

Common AssociatesHide

Associated Minerals Based on Photo Data:
Anglesite5 photos of Fassinaite associated with Anglesite on mindat.org.
Cerussite5 photos of Fassinaite associated with Cerussite on mindat.org.
Galena4 photos of Fassinaite associated with Galena on mindat.org.
Scotlandite4 photos of Fassinaite associated with Scotlandite on mindat.org.
Susannite4 photos of Fassinaite associated with Susannite on mindat.org.
Leadhillite4 photos of Fassinaite associated with Leadhillite on mindat.org.
Sulphur3 photos of Fassinaite associated with Sulphur on mindat.org.
Sphalerite2 photos of Fassinaite associated with Sphalerite on mindat.org.

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 FassinaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
U. Kolitsch (2010): Pb2(S2O3)(CO3): The first naturally occurring thiosulphate carbonate and its atomic arrangement. Oral presentation, 20th General Meeting of the IMA (IMA2010), Budapest, Hungary, August 21-27; abstract in CD of Abstracts, p. 489.
Nestola, F., Bindi, L., Guastoni, A., Zorzi, F., Nasdala, L. (2011): Pb2(CO3)(S2O3), the first mineral with coexisting carbonate and thiosulfate groups from Trentini mine, Vicenza, Italy. Poster, Geoitalia 2011, Turin, Italy, September 19-23, 2011; abstract in Plinius 37, 308.
Bindi, L., Nestola, F., Guastoni, A., Zorzi, F. and Nasdala, L. (2011): Fassinaite, IMA 2011-048. CNMNC Newsletter No. 10, 2559.
Bindi, L., Nestola, F., Kolitsch, U., Guastoni, A. & Zorzi, F. (2011): Fassinaite, Pb2+2(S2O3)(CO3), the first mineral with coexisting thiosulphate and carbonate groups: description and crystal structure. Mineralogical Magazine, 75, 2721-2732.
U. Kolitsch, L. Bindi, F. Nestola, A. Guastoni, F. Zorzi and R. Poeverlein (2012): Fassinait, ein neues Bleimineral aus Italien, Österreich und Deutschland. Lapis 37 (1), 52-53; 62 (in German).

Internet Links for FassinaiteHide

Localities for FassinaiteHide

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.
Austria
 
  • Carinthia
    • Friesach - Hüttenberg area
      • Hüttenberg
        • Waitschach
Kolitsch, U., Brandstätter, F., Schreiber, F., Fink, R. & Auer, C. (2013): Die Mineralogie der weltweit einzigartigen Schlacken von Waitschach, Kärnten. Annalen des Naturhistorischen Museums in Wien, Serie A, 115, 19-87 (in German).
  • Salzburg
    • Saalfelden
      • Leogang
        • Hütten
          • Schwarzleograben
            • Schwarzleo District
U. Kolitsch (2010): Pb2(S2O3)(CO3): The first naturally occurring thiosulphate carbonate and its atomic arrangement. Oral presentation, 20th General Meeting of the IMA (IMA2010), Budapest, Hungary, August 21-27; abstract in CD of Abstracts, p. 489; Bindi, L., Nestola, F., Kolitsch, U., Guastoni, A. & Zorzi, F. (2011): Fassinaite, Pb2+2(S2O3)(CO3), the first mineral with coexisting thiosulphate and carbonate groups: description and crystal structure. Mineralogical Magazine, 75, 2721-2732.
Bindi, L., Nestola, F., Kolitsch, U., Guastoni, A. & Zorzi, F. (2011): Fassinaite, Pb2+2(S2O3)(CO3), the first mineral with coexisting thiosulphate and carbonate groups: description and crystal structure. Mineralogical Magazine, 75, 2721-2732; U. Kolitsch, L. Bindi, F. Nestola, A. Guastoni, F. Zorzi and R. Poeverlein (2012): Fassinait, ein neues Bleimineral aus Italien, Österreich und Deutschland. Lapis 37 (1), 52-53; 62 (in German).
U. Kolitsch, L. Bindi, F. Nestola, A. Guastoni, F. Zorzi and R. Poeverlein (2012): Fassinait, ein neues Bleimineral aus Italien, Österreich und Deutschland. Lapis 37 (1), 52-53; 62 (in German).
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Schapbach
        • Wildschapbach valley
U. Kolitsch (2010): Pb2(S2O3)(CO3): The first naturally occurring thiosulphate carbonate and its atomic arrangement. Oral presentation, 20th General Meeting of the IMA (IMA2010), Budapest, Hungary, August 21-27; abstract in CD of Abstracts, p. 489; Bindi, L., Nestola, F., Kolitsch, U., Guastoni, A. & Zorzi, F. (2011): Fassinaite, Pb2+2(S2O3)(CO3), the first mineral with coexisting thiosulphate and carbonate groups: description and crystal structure. Mineralogical Magazine, 75, 2721-2732; U. Kolitsch, L. Bindi, F. Nestola, A. Guastoni, F. Zorzi and R. Poeverlein (2012): Fassinait, ein neues Bleimineral aus Italien, Österreich und Deutschland. Lapis 37 (1), 52-53; 62 (in German).
Italy
 
  • Veneto
    • Vicenza Province
      • Torrebelvicino
        • Mercanti Valley
Zordan, A., Rocchetti, I., Boscardin, M. & Zorzi, F. (2012): Fassinaite del Monte Trisa, un nuovo ritrovamento nel Vicentino. Rivista Mineralogica Italiana, 2/2012, 100-109
Pegoraro, S. (2012): Miniere e Minerali dell'Alto Vicentino. I Monti d'Oro. AMI, Ed., Cremona, (in press).
        • Monte Naro
          • Monte Naro - Riolo Valley side
            • Contrada Trentini
Nestola, F., Bindi, L., Guastoni, A., Zorzi, F., Nasdala, L. (2011): Pb2(CO3)(S2O3), the first mineral with coexisting carbonate and thiosulfate groups from Trentini mine, Vicenza, Italy. Poster, Geoitalia 2011, Turin, Italy, September 19-23, 2011; abstract in Plinius 37, 308.; Bindi, L., Nestola, F., Guastoni, A., Zorzi, F. and Nasdala, L. (2011): Fassinaite, IMA 2011-048. CNMNC Newsletter No. 10, 2559; Bindi, L., Nestola, F., Kolitsch, U., Guastoni, A. & Zorzi, F. (2011): Fassinaite, Pb2+2(S2O3)(CO3), the first mineral with coexisting thiosulphate and carbonate groups: description and crystal structure. Mineralogical Magazine, 75, 2721-2732.
Spain
 
  • Andalusia
    • Jaén
      • Linares-La Carolina District
        • Linares
Gunnar Färber sales list April 2014
UK
 
  • Scotland
    • Strathclyde
      • South Lanarkshire
        • Leadhills
Steve Rust collection (SXRD-analysed by Uwe Kolitsch)
USA
 
  • Michigan
    • Marquette Co.
      • Trowbridge Park
Travis Olds collection
Mineral and/or Locality  
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