Over geological time scales, very few metals can resist natural weathering processes like oxidation, which is why generally only the less reactive metals such as gold and platinum are found as native metals.
Sepanjang waktu skala geologi, sangat sedikit logam dapat menahan proses pelapukan alami seperti oksidasi, sehingga umumnya hanya logam yang kurang reaktif seperti emas dan platina yang ditemukan sebagai logam asli.