A glittering world of graphite plains and carbide ridges.
Carbon World
Magnetic FieldHigh Activity
Why is this a Carbon World?Your planet's carbon (48.4%) outweighs its oxygen (3.2%), so the mineralogy flips from silicate rock to carbide - a graphite crust over a diamond mantle.
Carbon worlds form in carbon-rich disks where there isn't enough oxygen to bind it all into silicates. Instead carbon condenses directly into graphite, carbides, and - under pressure at depth - diamond. They form water-poor, so no life takes hold.