Abstract
The Eaton 'meteorite' contains roughly 66 per cent Cu, 33 per cent Zn and <0.1 per cent Ni. In contrast, native Cu from other meteorites contains >90 per cent Cu, <5 per cent Zn and in those samples in which it could be measured, 0.4-2.4 per cent Ni. The major phases and inclusions of Eaton closely resemble those in commercial yellow brass. Eaton contains α and β Cu-Zn, small Pb inclusions around the Cu-Zn crystals and larger Ca aluminosilicate inclusions similar to those from sand casting molds. Based on these data Eaton does not appear to be a meteorite. Both meteoritic and terrestrial native copper are striking for their relatively high purity. Meteoritic Cu appears to be distinguishable from terrestrial material by its higher Ni contents.
| Original language | English (US) |
|---|---|
| Journal | Geochimica et Cosmochimica Acta |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1973 |
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ASJC Scopus subject areas
- Geochemistry and Petrology
Cite this
The question of Eaton : terrestrial versus meteoritic copper. / Buseck, P R; Holdsworth, Edward; Scott, G. Robert.
In: Geochimica et Cosmochimica Acta, Vol. 37, No. 5, 1973.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The question of Eaton
T2 - terrestrial versus meteoritic copper
AU - Buseck, P R
AU - Holdsworth, Edward
AU - Scott, G. Robert
PY - 1973
Y1 - 1973
N2 - The Eaton 'meteorite' contains roughly 66 per cent Cu, 33 per cent Zn and <0.1 per cent Ni. In contrast, native Cu from other meteorites contains >90 per cent Cu, <5 per cent Zn and in those samples in which it could be measured, 0.4-2.4 per cent Ni. The major phases and inclusions of Eaton closely resemble those in commercial yellow brass. Eaton contains α and β Cu-Zn, small Pb inclusions around the Cu-Zn crystals and larger Ca aluminosilicate inclusions similar to those from sand casting molds. Based on these data Eaton does not appear to be a meteorite. Both meteoritic and terrestrial native copper are striking for their relatively high purity. Meteoritic Cu appears to be distinguishable from terrestrial material by its higher Ni contents.
AB - The Eaton 'meteorite' contains roughly 66 per cent Cu, 33 per cent Zn and <0.1 per cent Ni. In contrast, native Cu from other meteorites contains >90 per cent Cu, <5 per cent Zn and in those samples in which it could be measured, 0.4-2.4 per cent Ni. The major phases and inclusions of Eaton closely resemble those in commercial yellow brass. Eaton contains α and β Cu-Zn, small Pb inclusions around the Cu-Zn crystals and larger Ca aluminosilicate inclusions similar to those from sand casting molds. Based on these data Eaton does not appear to be a meteorite. Both meteoritic and terrestrial native copper are striking for their relatively high purity. Meteoritic Cu appears to be distinguishable from terrestrial material by its higher Ni contents.
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U2 - 10.1016/0016-7037(73)90059-8
DO - 10.1016/0016-7037(73)90059-8
M3 - Article
VL - 37
JO - Geochmica et Cosmochimica Acta
JF - Geochmica et Cosmochimica Acta
SN - 0016-7037
IS - 5
ER -