Feldspar-bearing veins and pegmatites in an Peridotite (Picrite) sill.
Ref.:
- Benson, W.N. (1940): Kaersutite and other brown Amphiboles in the Cainozoic Igneous rocks of the Dunedin District, Transactions and Proceedings of the Royal Society of New Zealand, Vol. 69, 283-308
- Donaldson, C. (1977): Kaersutite overgrowths on highly aluminous Titanaugite in the Quarsut sill, Mineralogical Magazine, Vol. 4 I, 297-300