Chang'e-6 lunar soil holds unknown magnetic mineral

· Science · China

Scientists studying Chang'e-6 lunar soil have found a previously unknown magnetic mineral in natural Moon samples: a nanoscale metallic iron called gamma-Fe. Trapped inside tiny impact-glass particles, it can preserve a stable magnetic signal, potentially recording the Moon's ancient magnetic history.

Why it matters：Direct samples of the lunar far side give planetary scientists a new archive of the Moon's magnetic past, which bears on how planetary bodies generate and lose magnetic fields.

Key points

  • The mineral is a nanoscale form of metallic iron called gamma-Fe.
  • It was found inside tiny impact-glass particles in the soil.
  • It can preserve a stable magnetic signal like a microscopic fossil.

Sources (original reporting)

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