elements · 27 / 118 · All 118

Cobalt

Z: 27
Mass: 58.933
Lifeforce: Earth
In the body: thyroid

Miners named it after the kobold — the spirit they blamed for poisoned ore. Today the maligned element sits in every lithium-ion battery you carry.

A terraced slope with laid stone foundations and visible roots; a figure sets a stone in place. — Plate · Earth Earth never hurries — it *holds*, stone by stone, whatever is meant to last.

Cobalt. Element twenty-seven. Named for the kobold — the underground spirit miners blamed for poisoned ore. Now in every lithium-ion battery you carry.

Lab note · Atomic number 27; ≈3 mg in the body — the heart of vitamin B12.