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Monte Costone
Basic information Name: Monte Costone
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Italy
Mass:help 224 g
Classification
  history:
Recommended:  H5    [explanation]

This is 1 of 11606 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 12 Mar 2024
Writeuphelp
Writeup from MB 113:

Monte Costone        45°46.57’N, 9°43.30’E

Lombardia, Italy

Find: 2020 Jun 16

Classification: Ordinary chondrite (H5)

History: The meteorite was found by Federico Pogliani, the owner of the main mass. He usually walked, together with his dog, on Monte Costone’s paths because he is a collector of roe-deer antlers and minerals. Pogliani observed the presence of this dark object in a zone where usually the colors of rocks are light.

Physical characteristics: The 224 g meteorite appeared completely covered by a dark-gray fusion crust and had magnetic properties. The main mass was cut in 3 pieces of 11.3, 20.8 and 191.9 g in addition to a thin section.

Petrography: The meteorite shows the typical features of ordinary chondrites: abundant chondrules include porphyritic olivine, radial pyroxene, granular, and barred olivine chondrules, including porphyritic olivine, radial pyroxene, granular and barred olivine types, with size range 0.1 - 1.5 mm in diameter. In many chondrules, the mesostasis shows partial to extensive devitrification, up to the crystallization of feldspar. Most of the metal phases show amoeboid shape. Plagioclase crystals up to 50 μm in size

Geochemistry: The composition of phases was determined with a JEOL JXA 8530-F (with WDS-EDS detectors) at NHMV by Dr. L. Pittarello. Plagioclase An11-43.

Classification: Ordinary chondrite (H5)

Specimens: Type specimen at UPad, main mass with Federico Pogliani

Data from:
  MB113
  Table 0
  Line 0:
State/Prov/County:Lombardia
Date:2020 Jun 16
Latitude:45°46.57'N
Longitude:9°43.30'E
Mass (g):224
Pieces:1
Class:H5
Shock stage:S1
Weathering grade:W1/2
Fayalite (mol%):18.9±0.29 (n=22)
Ferrosilite (mol%):17.1±0.65 (n=21)
Wollastonite (mol%):1.24±1.04
Classifier:A. Barbaro, UPav; F. Nestola, UPad; L. Pittarello, NHMV
Type spec mass (g):20.8
Type spec location:UPad
Main mass:Federico Pogliani
Finder:Federico Pogliani
Comments:Submitted by Anna Barbaro
Institutions
   and collections
NHMV: Naturhistorisches Museum, Burgring 7, 1010 Wien, Austria, Austria; Website (institutional address; updated 18 Jan 2019)
UPad: Department of Geosciences, University of Padova, Via G. Gradenigo 6, I-35131 Padova, Italy, Italy (institutional address; updated 20 Jun 2022)
UPav: University of Pavia Strada Nuova 65 Pavia, Lombardia, Italy (institutional address; updated 12 Mar 2024)
Catalogs:
References: Published in Meteoritical Bulletin, no. 113, in preparation (2024)
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Geography:

Italy
Coordinates:
     Recommended::   (45° 46' 34"N, 9° 43' 18"E)

Statistics:
     This is 1 of 6 approved meteorites from Lombardia, Italy (plus 2 unapproved names)
     This is 1 of 47 approved meteorites from Italy (plus 23 unapproved names)
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