Debris

Debris (残骸) is the tentative name for an unknown substance discovered in Kalinsha in Mass for the Dead.

Description
This item was discovered in the Cathedral of Kalinsha, guarded by a Dragon Chaos Beast after Momonga slew it. After noticing this find, it was later brought to the Great Tomb of Nazarick where Demiurge and Pandora's Actor began to study it.

Eventually, Demiurge was able to determine that the substance shared various characteristics with a deceased petrified body of a newly discovered monster that was found in the Northern Cave.

Appearance
It resembles some sort of organic metal with a hollow inside and a complicated shape that seemed naturally formed.

Abilities
According to Demiurge's analysis, although the substance is close to an ore, it did not match any identified ore but was a bit more like a temperate stone. The Floor Guardian's report, also included that it seems to be related to the Cracks and may have formed through artificial methods.

Trivia

 * Aura believed perhaps this materiel was some sort of fossil, but Demiurge disproved this stating that the material consists of an outer layer that is hardened, but with an inner side that is soft and not uniform, indicating it to be not that old in age.