Classification: Porphyritic Olivine (PO)

Size: Ø 155 µm | Shape: roundish | Colour: grey/black

Crystalline structure: non-oriented crystals

Magnetite: single crystals, Chrom-rich

Chromite

Surface properties: porous

Locality: site #55 | rooftop | N 52.6906300, E 7.2859700 | Terrestrial age: 0-18 a