Classification: Porphyritic Olivine (PO)

Size: 118 x 135 µm | Shape: roundish | Colour: grey/black

Crystalline Structure: non-oriented crystals, (oriented crystals)

Magnetite: single crystals

Locality: site #61 | rooftop | N 52.534008, E 13.514426 | Terrestrial age: 19 d