Registro do codex·Minérios
Iron node
Registros
- Registro 1
Banded iron formations-Precambrian sedimentary rocks of alternating hematite/magnetite and chert layers-are the world's primary iron ore source and typically over 1.7 billion years old.
- Registro 2
Approximately 98 percent of mined iron ore worldwide is used to make steel, the foundational alloy for buildings, railroads, vehicles, tools, and weaponry.
- Registro 3
Ancient Egyptians called iron "ba-en-pet," meaning "metal of heaven," because their earliest iron came from meteorites. Tutankhamun's famous dagger blade was confirmed in 2016 to be forged from meteoritic iron