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Sapopema
Basic information Name: Sapopema
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2010
Country: Brazil
Mass:help 12 kg
Classification
  history:
Recommended:  Iron, IVA    [explanation]

This is 1 of 77 approved meteorites (plus 1 unapproved name) classified as Iron, IVA.   [show all]
Search for other: Iron meteorites, IVA irons, and Metal-rich meteorites
Comments: Approved 17 Oct 2014
Writeuphelp
Writeup from MB 103:

Sapopema        23°52’32"S, 50°33’12"W

Parana, Brazil

Found: 2010

Classification: Iron meteorite (IVA)

History: The iron was found in a eucalyptus plantation by a teenager and his father. As the teenager collected rocks and minerals, the meteorite caught his attention for being very heavy. His cousin suspected that it could be a meteorite because she had watched a Brazilian TV program which discussed how to recognize meteorites.

Physical characteristics: A semi-regular weathered mass of about 20 × 15 × 12 cm, weighing about 13 kg.

Petrography: (M.E. Zucolotto, MNRJ) The etched sections exhibit a fine Widmanstätten structure of straight, long (~10-20 mm) kamacite lamellae with a width of (0.30±0.05 mm). Taenite and plessite cover about 40% by area.

Geochemistry: (J.T. Wasson, UCLA) INAA: 7.96% Ni; 0.39% Co; 1.95 ppm Ga; 2.34 ppm Ir; 1.047 ppm Au. Composition of Major phases (I.P. Ludka, IGEO-UFRJ) WDS/EPMA: kamacite (Ni=8.3±0.4; Co=0.54; N=20), taenite (Ni=29.4±1.4; Co=0.18; N=16), all wt%.

Classification: This IVA iron is compositionally unresolvable from two other Brazilian IVA irons, Para de Minas and Cratheus (1931). The discovery location appears to be well documented, and is far from Para de Minas and Cratheus (J. Wasson UCLA).

Specimens: Main mass with finder, 32 g MNRJ.

Data from:
  MB103
  Table 0
  Line 0:
State/Prov/County:Parana
Origin or pseudonym:Eucalyptus field
Date:2010
Latitude:23°52'32"S
Longitude:50°33'12"W
Mass (g):12000
Pieces:1
Class:Iron, IVA
Classifier:J.T. Wasson, UCLA
Type spec mass (g):32
Type spec location:MNRJ
Main mass:anonymous
Finder:R.
Comments:Submitted by Maria Elizabeth Zucolotto
Institutions
   and collections
MNRJ: Museu Nacional, Quinta da Boa Vista, Rio de Janeiro, CEP 20940-040, Brazil (institutional address; updated 26 Dec 2011)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
IGEO-UFRJ: Instituto de Geociências, Universidade Federal do Rio de Janeiro, Brazil (institutional address; updated 17 Oct 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, in preparation (2014)
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Geography:

Brazil
Coordinates:
     Recommended::   (23° 52' 32"S, 50° 33' 12"W)

Statistics:
     This is 1 of 4 approved meteorites from Parana, Brazil (plus 1 unapproved name) (plus 1 impact crater)
     This is 1 of 71 approved meteorites from Brazil (plus 6 unapproved names) (plus 6 impact craters)
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