Nelson Rock and Mineral Club
|
NGR
Age
Description
Explanation
Access
Further information
|
1601616, 5459297
Cretaceous
A spectacular boulder of granite, split in two by weathering, in the shape of an apple. Sections in granite show weathering features. Small areas also visible of rare orbicular granite.
Granites were intruded during the Cretaceous, and form part of the Separation Point Suite. The majority of the exposed granites are biotite gramites, showing large crystals of feldspar. The orbicular granites are localised and easily recognisable by their golf-ball sized spheres of concentrically-layered rock; formation is supposedly due to nucleation of cooling magma around a solid grain.
Split Apple Rock can be viewed at all times from beach (at end of short footpath); access to granite sections possible at low-mid tide; orbicular granites accessible only at low tide.
|