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Barbianello meteorite, Barbianello, Pavia Province, Lombardy, Italyi
Regional Level Types
Barbianello meteoriteMeteorite Fall Location
Barbianello- not defined -
Pavia ProvinceProvince
LombardyRegion
ItalyCountry

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Key
Latitude & Longitude (WGS84):
45° 3' 28'' North , 9° 11' 44'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Barbianello560 (2014)2.2km
Redavalle1,015 (2014)2.3km
Manzo132 (2014)2.3km
Pinarolo Po1,362 (2014)2.6km
Cassino Po165 (2014)2.8km
Name(s) in local language(s):
Meteorite di Barbianello, Barbianello, Provincia di Pavia, Lombardia, Italia


Official name: Barbianello
Observed fall: no
Find: October 1960 or 1961
Coordinates (Catalogue of Meteorites): 45°3'28"N, 9°11'44"E
Approx. recovered weight: 860 g
Iron ungrouped (ataxite)

A single mass of 860 g was found in October 1960 (or 1961) by the farmer Clemente Allini while he was ploughing a cornfield in the locality Antoniana Piccola (Barbianello municipality; 45°03’28’’N 9°11′44′′E). In 1972, the young Carla Allini showed it to her teacher, who submitted it to Professor G. Giuseppetti at the University of Pavia. Based upon a visual examination and preliminary bulk analyses carried out in 1974 (using atomic absorption spectroscopy [AAS] and traditional wet methods), it was identified as an unusually Ni-rich iron meteorite.

Classification and mineralogy: ataxitic texture, lacking Widmannstätten patterns; severely altered surface, but fresh interior showing dark and light regions texturally similar to, but compositionally distinct from, Santa Catharina iron meteorite. Light regions are mainly composed of taenite (Ni 27 wt%) with quantitatively subordinate kamacite (Ni 5.4 wt%), often nucleated around "schreibersite" (now identified as allabogdanite; Britvin et al., 2019). Dark regions are inhomogeneous with Ni 40–58 wt% and up to 20% oxygen (calculated); relics of metal with Ni3Fe (awaruite) composition are present. The search for troilite, graphite or silicate mineral, carried out on two distinct polished mounts with both optical and electron microscope was negative in both light and dark areas. Bulk metal composition (instrumental neutron activation analysis [INAA], Max-Planck-Institut für Chemie, Mainz): Ni = 27.1 wt%; Co = 5480 µg/g; Cu = 1380 µg/g; Ge = 73 µg/g; Ga = 28 µg/g; As = 16.6 µg/g; Pt = 1.6 µg/g; Ir = 1.51 µg/g; Os = 1.4 µg/g; Au = 1.39 µg/g. Based on its Ge/Ga ratio, composition falls into the IAB-IIICD trend; concentrations of Ga (28 ppm) and Ge (73 ppm) are higher than in typical IAB-IIICDs, yet comparable to concentrations in the Ni-rich IABs San Cristobal and Yamato as well as the ungrouped iron Elephant Moraine. However, the distinctly lower than IAB-IIICD As (16.6 ppm) and Au (1.39 ppm) contents allows to classify this iron as chemically ungrouped. This meteorite, although similar to IAB-IIICDs, is actually unique, and is classified as an ungrouped ataxite (Fioretti & Zipfel, 2004).

Specimens: the main mass (479 g) is preserved at the Municipal Natural History Museum of Milano (Inventory number: MSNM-M-31767).

Phosphides in Barbianello meteorite were described as schreibersite, but in fact are represented by its nickel-dominant analogue, nickelphosphide, (Ni,Fe)3P (Britvin et al., 2019).

Regions containing this locality

Eurasian PlateTectonic Plate
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Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals. 2 erroneous literature entries.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Akaganeite
Formula: (Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Reference: Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.
Allabogdanite
Formula: (Fe,Ni)2P
Reference: Britvin, S.N., Shilovskikh, V.V., Pagano, R., Vlasenko, N.S., Zaitsev, A.N., Krzhizhanovskaya, M.G., Lozhkin, M.S., Zolotarev, A.A., Gurzhiy, V.V. (2019): Allabogdanite, the high-pressure polymorph of (Fe,Ni)2P, a stishovite-grade indicator of impact processes in the Fe–Ni–P system. Scientific Reports, 9, 1047; https://www.nature.com/articles/s41598-018-37795-x ; Britvin, S. N., Shilovskikh, V. V., Pagano, R., Vlasenko, N. S., Zaitsev, A. N., Krzhizhanovskaya, M. G., ... & Gurzhiy, V. V. (2019). Allabogdanite, the high-pressure polymorph of (Fe, Ni) 2 p, a stishovite-grade indicator of impact processes in the Fe–Ni–p system. Scientific reports, 9(1), 1047.
Awaruite
Formula: Ni3Fe
Reference: Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.
Iron
Formula: Fe
Reference: Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.
Nickelphosphide
Formula: (Ni,Fe)3P
Reference: Britvin, S. N., Shilovskikh, V. V., Pagano, R., Vlasenko, N. S., Zaitsev, A. N., Krzhizhanovskaya, M. G., ... & Gurzhiy, V. V. (2019). Allabogdanite, the high-pressure polymorph of (Fe, Ni) 2 p, a stishovite-grade indicator of impact processes in the Fe–Ni–p system. Scientific reports, 9(1), 1047.
Schreibersite
Formula: (Fe,Ni)3P
Description: Phosphides in Barbianello were described as schreibersite45, but in fact are represented by its nickel-dominant analogue, nickelphosphide (Britvin et al., 2019)
Reference: Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.; Britvin, S. N., Shilovskikh, V. V., Pagano, R., Vlasenko, N. S., Zaitsev, A. N., Krzhizhanovskaya, M. G., ... & Gurzhiy, V. V. (2019). Allabogdanite, the high-pressure polymorph of (Fe, Ni) 2 p, a stishovite-grade indicator of impact processes in the Fe–Ni–p system. Scientific reports, 9(1), 1047.
Taenite
Formula: (Fe,Ni)
Description: Britvin, S.N., Shilovskikh, V.V., Pagano, R., Vlasenko, N.S., Zaitsev, A.N., Krzhizhanovskaya, M.G., Lozhkin, M.S., Zolotarev, A.A., Gurzhiy, V.V. (2019): Allabogdanite, the high-pressure polymorph of (Fe,Ni)2P, a stishovite-grade indicator of impact processes in the Fe–Ni–P system. Scientific Reports, 9, 1047; https://www.nature.com/articles/s41598-018-37795-x
Reference: Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149. Britvin, S.N., Shilovskikh, V.V., Pagano, R., Vlasenko, N.S., Zaitsev, A.N., Krzhizhanovskaya, M.G., Lozhkin, M.S., Zolotarev, A.A., Gurzhiy, V.V. (2019): Allabogdanite, the high-pressure polymorph of (Fe,Ni)2P, a stishovite-grade indicator of impact processes in the Fe–Ni–P system. Scientific Reports, 9, 1047; https://www.nature.com/articles/s41598-018-37795-x
Tetrataenite
Formula: FeNi
Reference: Britvin, S.N., Shilovskikh, V.V., Pagano, R., Vlasenko, N.S., Zaitsev, A.N., Krzhizhanovskaya, M.G., Lozhkin, M.S., Zolotarev, A.A., Gurzhiy, V.V. (2019): Allabogdanite, the high-pressure polymorph of (Fe,Ni)2P, a stishovite-grade indicator of impact processes in the Fe–Ni–P system. Scientific Reports, 9, 1047; https://www.nature.com/articles/s41598-018-37795-x

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Allabogdanite1.BD.15(Fe,Ni)2P
Awaruite1.AE.20Ni3Fe
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Nickelphosphide1.BD.05(Ni,Fe)3P
Schreibersite ?1.BD.05(Fe,Ni)3P
Taenite ?1.AE.10(Fe,Ni)
Tetrataenite1.AE.10FeNi
Group 4 - Oxides and Hydroxides
Akaganeite4.DK.05(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Awaruite1.1.11.4Ni3Fe
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Schreibersite ?1.1.21.2(Fe,Ni)3P
Taenite ?1.1.11.2(Fe,Ni)
Tetrataenite1.1.11.3FeNi
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Akaganeite6.1.6.1(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Unclassified Minerals, Mixtures, etc.
Allabogdanite-(Fe,Ni)2P
Iron-Fe
Nickelphosphide-(Ni,Fe)3P

List of minerals for each chemical element

HHydrogen
H Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
OOxygen
O Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
PPhosphorus
P Allabogdanite(Fe,Ni)2P
P Nickelphosphide(Ni,Fe)3P
P Schreibersite(Fe,Ni)3P
ClChlorine
Cl Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
FeIron
Fe IronFe
Fe Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Fe AwaruiteNi3Fe
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Allabogdanite(Fe,Ni)2P
Fe TetrataeniteFeNi
Fe Nickelphosphide(Ni,Fe)3P
Fe Taenite(Fe,Ni)
Fe Schreibersite(Fe,Ni)3P
NiNickel
Ni Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2O
Ni AwaruiteNi3Fe
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Allabogdanite(Fe,Ni)2P
Ni TetrataeniteFeNi
Ni Nickelphosphide(Ni,Fe)3P
Ni Taenite(Fe,Ni)
Ni Schreibersite(Fe,Ni)3P

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Fioretti, A.M., Zipfel, J., de Michele, V., Spettel, B., Huisl, W. (2001) Classification of a new iron meteorite found in Italy. 64th Annual Meteoritical Society Meeting, abstract 5040.
Fioretti, A.M., Zipfel, J. (2004) Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.
Britvin, S.N., Shilovskikh, V.V., Pagano, R., Vlasenko, N.S., Zaitsev, A.N., Krzhizhanovskaya, M.G., Lozhkin, M.S., Zolotarev, A.A., Gurzhiy, V.V. (2019): Allabogdanite, the high-pressure polymorph of (Fe,Ni)2P, a stishovite-grade indicator of impact processes in the Fe–Ni–P system. Scientific Reports, 9, 1047; https://www.nature.com/articles/s41598-018-37795-x


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