Spinel (Var: Pleonaste), Zircon
Hillside xenocryst locality, Vernon Co., New South Wales, Australia
Basalt with 10mm euhedral pleonaste xenocryst and a 5mm euhedral zircon xenocryst. It is very unusual to see both minerals as euhedral xenocrysts in a single specimen from any Australian location.
Specimen has two repaired breaks, one in the basalt matrix and the second in the pleonaste crystal. During excavation a soil covered basalt boulder ...
© Matthew Goodwin 2016