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PARÁ DE MINAS
BRAZIL - MG
Iron Meteorite - Fine Octaedrite IVA.
Pará de Minas is a fine octahedrite of the IVA group, showing a thin and continuous Widmanstätten structure, length (Lw approx 50), kamacite lamellae with average widths of 0.33 + -0.5mm and Vickers hardness 185 + -10 . Neumann lines and sub-frontiers with no precipitation due to low phosphorus content. Source: www.meteorito.com
The average of the chemical analyses made by Curvello and Ferreira (1952), Cobb 1967 Moore et al. (1969) and Schaudy et al (1972), show 8.04% Ni, 0.36% Co, 0.07% P, 2.1ppm Ga, 0.13 pp Ge and 2.4 ppm Ir. Source: www.meteorito.com
Pará de Minas is a fine octahedrite of the IVA group, showing a well-developed fine Widmanstätten structure.
Not reported by the Meteoritical Bulletin Database. Curvello & Ferreira (1952), Cobb (1967) Moore et al. (1969) and Schaudy et al. (1972).
A mass of 112kg was found at Rancho de Palmital, 12km southwest of Pará de Minas, by Mr. João Bertoldo Dias around 1937, when he was passing by a bullock cart, which from time to time caught on a stone that touched the land and called attention for making a bell noise. On one occasion he noticed that it was a different rock from the others and with great difficulty he removed the stone from the place and took it to the headquarters of the farm. At the time many people went to see the stone and word of mouth the news reached the mayor who warned him that if he did not sell the stone it would be taken over by the state. Mr. João then sold the stone for 8 réis. At the National Museum, however, a receipt for "14 reis" was found. At the time, a family photograph was taken next to the stone, however the whereabouts of the photo are not known. It is a semi-regular mass in the shape of an animal's head with a surface with virtually no depressions and covered by a smooth surface with a thin layer of corrosion. It does not present a melting crust or the region affected by heat, removed by terrestrial weathering, proving that the meteorite fell many centuries ago, therefore, it is not a fall. Source: www.meteorito.com
Todas as informações que não possuírem fonte especifica, foram extraídas do Meteoritical Bulletin Database.
Todas as imagens possuem direitos autorais.
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