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Messina meteorite, Upper Camaro Valley, Messina, Messina Province, Sicily, Italy

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Latitude & Longitude (WGS84): 38° 10' 59'' North , 15° 32' 59'' East
Latitude & Longitude (decimal): 38.18333,15.55000
GeoHash:G#: sqg11z54j
Locality type:Meteorite Fall Location
Meteorite Class:L5 chondrite meteorite
Meteoritical Society Class:L5
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:Csa : Hot-summer Mediterranean climate
Name(s) in local language(s):Meteorite di Messina, Vallone di Camaro Superiore, Messina, Provincia di Messina, Sicilia, Italia


Ordinary chondrite (L5)
Fell, 16 July 1955, 11 hrs; 2.41 kg

After a locally intense fireball appeared, a ~ 10 kg meteoritic stone broke apart with a loud thud after striking a rock pile. Only 3 broken fragments, the largest 2.025 kg, were preserved. The recovered fragments reveal a darkened frontal surface w. sculptured regmaglypts, but the interior and and a crustless rear surface are light grey. Indistinct chondrules constitute ~40% of the meteorites volume and are usually less than 2 mm in diameter, but occasionally reach 5 mm. A singular 10 mm olivine-rich chondrule was also discovered. Chondrules are embedded in the light grey matrix along with scattered Fe-Ni metal patches, smaller troilite particles, and tiny metallic grains. Compositionally, bulk iron contents (21.53 wt% Fe) as well as olivine (Fa24) and low Ca-orthopyroxene (Fs21)composition are characteristic of the L-chondrite geochemical group. Mineralogically the meteorite consists primarily of dominant olivine and orthopyroxene with minor albitic plagioclase, troilite, and Fe-Ni metal. Accessory chromite, copper, diopside, and other minor phases are also reported. Remnants of shock events include a few minor veins, small metallic and troilite globules, and small glassy areas.

The L-group of ordinary chondrites (relatively low in total iron) are the largest group of witnessed meteorite falls and account for ~45% of all well-classified meteorite falls. The L5 petrologic type account for ~ 20% of the group. Currently, 82 meteorite falls are classified exactly as 'L5' chondrites at the Meteoritical Bulletin Database (early June 2017).

The main portion of the recovered 2.4 kg mass was obtained by the British National History Museum (NHM) in London. The remaining mass (1.972 kg) is listed as the 'Camaro' specimen [June 2017].

Reference Note: It should be noted that the Baldanza & Triscari (1985) report combined some previously reported work by Ramdohr (1973) [cited below] with some of their own independent observations of several opaque phases.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 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: Albitic plagioclase (An10) with, presumably, a small orthoclase component.
Reference: Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).; Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. Meteoritics & Planetary Science 45(1):123-134. (Jan 2010). between textural maturity and temperature: Geochimica et Cosmochimica Acta 71(7):1855-1881. (April 2007).
Chromite
Formula: Fe2+Cr3+2O4
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
'Clinopyroxene Subgroup'
Description: Small amounts of Ca-poor 'clinohypersthene' present.
Reference: Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Copper
Formula: Cu
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Diopside
Formula: CaMgSi2O6
Reference: Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. Meteoritics & Planetary Science 45(1):123-134. (Jan 2010). between textural maturity and temperature: Geochimica et Cosmochimica Acta 71(7):1855-1881. (April 2007).
'Fayalite-Forsterite Series'
Description: Olivine composition (Fa24), typical of L-group ordinary chondrites.
Reference: Mason, B. (1967) Olivine Composition in Chondrites—a supplement: G&CA 31:1100-1103. (June 1967).; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).; Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. Meteoritics & Planetary Science 45(1):123-134. (Jan 2010). between textural maturity and temperature: Geochimica et Cosmochimica Acta 71(7):1855-1881. (April 2007).
'Glass'
Description: Glass includes products of shocked pyroxene.
Reference: Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Iron
Formula: Fe
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Isocubanite
Formula: CuFe2S3
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
'L5 chondrite meteorite'
Reference: Meteoritical Society Database
Mackinawite
Formula: (Fe,Ni)9S8
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Merrillite
Formula: Ca9NaMg(PO4)7
Reference: Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
'Orthopyroxene Subgroup'
Description: Orthopyroxene composition [Fs20 and Fs21], Baldanza & Triscari (1985) and Dunn (2008), respectively, typical of L chondrites.
Reference: Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).; Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. Meteoritics & Planetary Science 45(1):123-134. (Jan 2010). between textural maturity and temperature: Geochimica et Cosmochimica Acta 71(7):1855-1881. (April 2007).
'Plessite'
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Spinel
Formula: MgAl2O4
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Taenite
Formula: (Fe,Ni)
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Troilite
Formula: FeS
Description: Mobilized troilite is not especially abundant, but is ubiquitous with diverse morphologies.
Reference: Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.; Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).; Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. Meteoritics & Planetary Science 45(1):123-134. (Jan 2010). between textural maturity and temperature: Geochimica et Cosmochimica Acta 71(7):1855-1881. (April 2007).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
'Iron'1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
'Isocubanite'2.CB.55bCuFe2S3
Mackinawite2.CC.25(Fe,Ni)9S8
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
'Chromite'4.BB.05Fe2+Cr3+2O4
Spinel4.BB.05MgAl2O4
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Group 9 - Silicates
'Diopside'9.DA.15CaMgSi2O6
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
L5 chondrite meteorite-
Orthopyroxene Subgroup-
Plessite-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Taenite1.1.11.2(Fe,Ni)
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Mackinawite2.7.2.1(Fe,Ni)9S8
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
AmBnXp, with (m+n):p = 1:1
Isocubanite2.9.13.3CuFe2S3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Spinel7.2.1.1MgAl2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Merrillite38.3.4.4Ca9NaMg(PO4)7
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
Iron-Fe
'L5 chondrite meteorite'-
'Orthopyroxene Subgroup'-
'Plessite'-

List of minerals for each chemical element

OOxygen
O ChromiteFe2+Cr23+O4
O DiopsideCaMgSi2O6
O MerrilliteCa9NaMg(PO4)7
O SpinelMgAl2O4
NaSodium
Na MerrilliteCa9NaMg(PO4)7
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg MerrilliteCa9NaMg(PO4)7
Mg SpinelMgAl2O4
AlAluminium
Al SpinelMgAl2O4
SiSilicon
Si DiopsideCaMgSi2O6
PPhosphorus
P MerrilliteCa9NaMg(PO4)7
SSulfur
S IsocubaniteCuFe2S3
S Mackinawite(Fe,Ni)9S8
S TroiliteFeS
CaCalcium
Ca DiopsideCaMgSi2O6
Ca MerrilliteCa9NaMg(PO4)7
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4
Fe IronFe
Fe IsocubaniteCuFe2S3
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Mackinawite(Fe,Ni)9S8
Fe Taenite(Fe,Ni)
Fe TroiliteFeS
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Mackinawite(Fe,Ni)9S8
Ni Taenite(Fe,Ni)
CuCopper
Cu CopperCu
Cu IsocubaniteCuFe2S3

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

Paleozoic
251.902 - 541 Ma



ID: 3153687
Palaeozoic granulite

Age: Phanerozoic (251.902 - 541 Ma)

Description: high grade metamorphic

Lithology: Major:{granulite}, Minor{gneiss,greenschist,amphibolite}

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]

Early Paleozoic - Proterozoic
443.8 - 2500 Ma



ID: 3189252
Precambrian-Phanerozoic crystalline metamorphic rocks

Age: to Ordovician (443.8 - 2500 Ma)

Lithology: Crystalline metamorphic 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]

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)
Mason, B. (1967) Olivine Composition in Chondrites—a supplement: G&CA 31:1100-1103. (June 1967).
Ramdohr, P. (1973) The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Baldanza, B. & Triscari, M. (1985) Mineralogy, petrology and chemistry of the Messina (Italy) chondrite: Meteoritics 20: 79-87. (March 1985).
Grady, M.M (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
Dunn, T.L. (2008) Determination of Mineral Abundances in Ordinary Chondrites Using Powder X-ray Diffraction: Applications to Parent Body Processes and Asteroid Spectroscopy. Doctoral Dissertation: Univ. Tenn., Knoxville. 161 pages.
Dunn, T.L., Cressy, G., McSween Jr, H.Y. & McCoy, T.J. (2010) Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances. Meteoritics & Planetary Science 45(1):123-134. (Jan 2010).

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