Classification: Porphyritic Olivine (PO)

Size: 86 x 90 µm | Shape: roundish | Colour: grey/black

Crystalline Structure: non-oriented crystals

Magnetite: single crystals, dendrites

Other surface properties: crystallization gaps

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