Classification: Cryptocrystalline (CC), microcrystalline (MC)

Size: 280 x 395 µm | Shape: roundish | Colour: grey/black

Crystalline structure: submicron crystallites, oriented crystals

Locality: site #56 | rooftop, aeolian deposits | N 52.670800, E 7.301100 | Terrestrial age: 0-21 a