Kjelsås, Sørkedalen, Oslo, Norway
Microscopic brown blades (not complete crystals, just bits...) with magnetite, in "kjelsaasite" rock. I managed a fuzzy picture of the one that is marked with an arrow, bit it's really tiny, and I could not confirm that other tiny blades are more of the zirconolite. It's an interesting, but not attractive rock, the last of a batch we got in 1958.
6x8x3.5cm, weight 219g