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Nova Olinda
Basic information Name: Nova Olinda
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2014
Country: Brazil
Mass:help 26.93 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Iron, IIAB
Recommended:  Iron, IIAB    [explanation]

This is 1 of 151 approved meteorites classified as Iron, IIAB.   [show all]
Search for other: IIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 19 Mar 2022
Writeuphelp
Writeup from MB 111:

Nova Olinda        7°28’S, 38° 1’W

Paraiba, Brazil

Find: 2014 Nov

Classification: Iron meteorite (IIAB)

History: (Andre L. R. Moutinho) The meteorite was found by brothers Edsom Oliveira da Silva and João Jarba Oliveira da Silva in November 2014, while prospecting for gold with a metal detector in the dry lake region of a farm in the rural area of Nova Olinda, Paraíba. Mr Edsom sent samples to Andre L R Moutinho that confirmed the sample as a meteorite.

Physical characteristics: Elongated shape, 26 kg, 29 × 15 × 1 7cm

Petrography: (Andre L. R. Moutinho) The meteorite has suffered intense weathering and no fusion crust or layer 2 region were observed. Terrestrial corrosion products were found up to 1-3 cm deep into the meteorite. In some portions, weathering followed the cubic cleavage planes of the original kamacite lamella. Two polished etched slices measuring 50 × 37 and 37 × 28 mm were studied. The etched slices shows thick lamellae of kamacite typically found in coarsest octahedrites. The average kamacite bandwidth is 5.93±2.4 mm (n=5). Neumman bands are abundant and were observed in some kamacite lamellae. Sparse plessite fields develops as comb plessite sometimes associated with wedge-shaped black taenite fields. Schreibersite wide ribbons and in crystals are abundant.

Geochemistry: ICP-MS data, using a sample of North Chile (Filomena) as standard (C. Herd and P. Hill, UAb); ICP-MS method: Cr = 1.29, Ir = 0.01, Ga = 42.8, Ge = 105, As = 12.6, Pt = 1.37, Cu = 94.2, W = 0.09, Pd = 1.41, Ag = 0.012, (all ug/g). (M. S. Navarro and J. Enzweller, DGRN/Unicamp) LA-ICP-MS data: Ni = 62.18, Co = 5.33 (both mg/g); Cr = 16.8, Ir = 0.02, Ga = 51.9, Ge = 95, As = 13.7, Pt = 1.02, Cu = 120, Au = 1.13, W = 0.47, Pd = 2.27, Ag = 0.22, (all ug/g). (R. Scholz and G. N. Queiroga, DEGEO/EM/UFOP, D. Atencio, IGc/USP). EPMA: kamacite: 0.55% Co. Schreibersite (Fe = 67.74±0.28 wt.%, Ni = 15.79±0.02 wt.%, P = 13.58±0.05 wt.%, n = 7).

Classification: Iron, IIAB The meteorite plots in IIAB fields and differs in composition from all Brazilian Irons. Type is consistent with the analysed structure.

Specimens: Main mass with finder, 49 g at Unicamp, 66 g at USP, 33.6g at UAb, 2 kg with Andre L R Moutinho,

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Paraiba
Origin or pseudonym:field
Date:2014 Nov
Latitude:7°28'S
Longitude:38° 1'W
Mass (g):26933
Pieces:1
Class:Iron, IIAB
Classifier:C. Herd and P. Hill, Uab. A. P. Crosta, Unicamp. G. Gonçalves, USP and A. L. R. Moutinho
Type spec mass (g):49
Type spec location:UNICAMP
Main mass:Finder
Finder:Mr. Edsom Oliveira da Silva and João Jarba Oliveira da Silva
Comments:Submitted by Andre L R Moutinho and Alvaro Crosta
Institutions
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
USP: Museu de Geociências - USP Rua do Lago, 562 CEP: 05508-080 Butantã - SP Brazil, Brazil; Website (institutional address; updated 16 Feb 2024)
UNICAMP: Institute of Geosciences Minerals Collection Rua Carlos Gomes 250 Cidade Universitária Zeferino Vaz Campinas, SP 13083-855, Brazil; Website (institutional address; updated 17 Dec 2021)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos:
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Public domain photographs:
Andre Moutinho   
Geography:

Brazil
Coordinates:
     Recommended::   (7° 28'S, 38° 1'W)

Statistics:
     This is the only approved meteorite from Paraiba, Brazil
     This is 1 of 88 approved meteorites from Brazil (plus 6 unapproved names) (plus 7 impact craters)
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