Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Trenzano meteorite, Trenzano, Brescia Province, Lombardy, Italy

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 45° 28' North , 10° 0' East
Latitude & Longitude (decimal): 45.46667,10.00000
GeoHash:G#: u0p4escy8
Locality type:Meteorite Fall Location
Meteorite Class:H3/4 chondrite meteorite
Meteoritical Society Class:H3/4
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:Cfa : Humid subtropical climate
Name(s) in local language(s):Meteorite di Trenzano, Trenzano, Brescia, Lombardia, Italia


Unequilibrated ordinary chondrite, veined (H3/4)
Fall, 12 November 1856; 11.8 kg, 2 stones

The first meteorite fall near Brescia. For most of the 20th Century, Trenzano was classified as a more or less normal ordinary chondrite — listed as an 'olivine-bronzite' chondrite in the Prior (1923) catalogue, an H6 in the Grady (2000) catalogue. Indeed while prominent chondrules are present, the matrix olivine (Fa19) and pyroxene (Fs17) are equilibrated within most of the meteorite. Other components such as Fe-Ni metal and troilite are just those expected in an ordinary H-chondrite. Closer inspection, however, has revealed variable plagioclase-feldspar compositions, glass, and other features inconsistent with such a simple classification. A more precise classification indicates a monomict breccia that contains an admixture of unequilibrated L-chondritic material (type H3) with the more equilibrated L-chondritic material (~type H4). In our current classification scheme, then, Trenzano becomes one of only 44 witnessed unequilibrated ordinary chondrite falls.

While 35 meteorites have been classified precisely as 'H3/4' chondrites, Gütersloh and Trenzano are the only witnessed H3/4 chondrite falls currently listed at the Meteoritical Bulletin Database (Oct 2015).

Refs.:
Chinellato, M. (2001): Two brescian meteorites: Trenzano and Alfianello", Meteorite Magazine, 05/2001.
Pedrazzi, G., Ortalli, I., Galvao da Silva, E., Scorzelli, R.B. (1996): Tetrataenite in Metal Particles of the Trenzano Meteorite Identified by Mossbauer Spectroscopy. Meteoritics & Planetary Science, 31, A105.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

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:

'Albite-Anorthite Series'
Description: Plagioclase is albitic (Ab77-83,An9-16Or5-12) but not well developed nor fully equilibrated.
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'Clinopyroxene Subgroup'
Description: Low-Ca Clinopyroxene is present.
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'Fayalite-Forsterite Series'
Reference: Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.; Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'Feldspar Group'
Description: K-bearing feldspar(Or12) is outside the range of normal K-poor meteoritic plagioclase.
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'Glass'
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'H3/4 chondrite meteorite'
Reference: Meteoritical Society Database
Iron
Formula: Fe
Reference: - M. Chinellato : "Two brescian meteorites : Trenzano and Alfianello", Meteorite Magazine, 05/2001 - Pedrazzi, G.; Ortalli, I.; Galvao da Silva, E.; Scorzelli, R. B. : "Tetrataenite in Metal Particles of the Trenzano Meteorite Identified by Mossbauer Spectroscopy", Meteoritics & Planetary Science, vol. 31, page A105, 01/1996
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'Orthopyroxene Subgroup'
Description: Orthopyroxene composition is En82Fs17Wo1 within equilibrated regions.
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
'Pyroxene Group'
Reference: - M. Chinellato : "Two brescian meteorites : Trenzano and Alfianello", Meteorite Magazine, 05/2001 - Pedrazzi, G.; Ortalli, I.; Galvao da Silva, E.; Scorzelli, R. B. : "Tetrataenite in Metal Particles of the Trenzano Meteorite Identified by Mossbauer Spectroscopy", Meteoritics & Planetary Science, vol. 31, page A105, 01/1996 ; Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.
Taenite
Formula: (Fe,Ni)
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).
Tetrataenite
Formula: FeNi
Reference: - M. Chinellato : "Two brescian meteorites : Trenzano and Alfianello", Meteorite Magazine, 05/2001 - Pedrazzi, G.; Ortalli, I.; Galvao da Silva, E.; Scorzelli, R. B. : "Tetrataenite in Metal Particles of the Trenzano Meteorite Identified by Mossbauer Spectroscopy", Meteoritics & Planetary Science, vol. 31, page A105, 01/1996
Troilite
Formula: FeS
Reference: Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Iron'1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Taenite1.AE.10(Fe,Ni)
Tetrataenite1.AE.10FeNi
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Glass'-
'H3/4 chondrite meteorite'-
Orthopyroxene Subgroup-
Pyroxene Group-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Taenite1.1.11.2(Fe,Ni)
Tetrataenite1.1.11.3FeNi
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Glass'-
'H3/4 chondrite meteorite'-
Iron-Fe
'Orthopyroxene Subgroup'-
'Pyroxene Group'-

List of minerals for each chemical element

SSulfur
S TroiliteFeS
FeIron
Fe IronFe
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Taenite(Fe,Ni)
Fe TetrataeniteFeNi
Fe TroiliteFeS
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Taenite(Fe,Ni)
Ni TetrataeniteFeNi

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neogene
2.588 - 23.03 Ma



ID: 3185031
Cenozoic sedimentary rocks

Age: Neogene (2.588 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Pliocene
2.588 - 5.333 Ma



ID: 3152889
Pliocene clay

Age: Pliocene (2.588 - 5.333 Ma)

Lithology: Major:{clay}, Minor{sand,conglomerate,limestone}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Prior, G. T. (1923) Catalogue of Meteorites: with special reference to those represented in the collection of the British Museum of Natural History. Richard Clay & Sons, Limited: Bungay, Suffolk.
Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.
Pedrazzi, G., Ortalli, I., Galvao da Silva, E., Scorzelli, R.B. (1996): Tetrataenite in Metal Particles of the Trenzano Meteorite Identified by Mossbauer Spectroscopy. Meteoritics & Planetary Science, 31, A105.
Grady, M. M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
Chinellato, M. (2001): Two brescian meteorites: Trenzano and Alfianello", Meteorite Magazine, 05/2001.
Fioretti, A. M., Domeneghetti, M. C., Molin, G., Cámara, F., Alvaro, M. & Agostini, L. (2007) Reclassification and thermal history of Trenzano chondrite: Meteoritics & Planetary Science 42(12):2055-2066. (Dec 2007).

External Links

http://www.lpi.usra.edu/meteor/metbull.php - MeteoriticalBulletinDatabase
http:www.lpi.usra.edu/meteor/metbull.php?code=24046 -Trenzano@MetBullDatabase
http://www.lpi.usra.edu/meteor/get_original_photo.php?recno=5632193 -photo
http://adsabs.harvard.edu/abs/2007M%26PS...42.2055F -BeginReclassifcation


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 24, 2020 22:43:22 Page generated: August 31, 2018 22:21:36
Go to top of page