THMM618

Classification: Porphyritic Olivine (PO)

Size: Ø 200 µm | Shape: roundish | Colour: grey/black

Crystalline structure: non-oriented crystals

Magnetite: single crystals, dendrites

Surface properties: porous, (tension crack)

Locality: site #56 | rooftop, unclear deposition conditions | N 52.670800, E 7.301100 | Terrestrial age: 0-21 a