Reconnaissance sampling of Mesoproterozoic Hiltaba Suite granite on northern Eyre Peninsula, to identify all potentially quarryable granite varieties, was carried out by MESA during 1996/97. A total of 157 outcrops were inspected and 99 samples...
Reconnaissance sampling of Mesoproterozoic Hiltaba Suite granite on northern Eyre Peninsula, to identify all potentially quarryable granite varieties, was carried out by MESA during 1996/97. A total of 157 outcrops were inspected and 99 samples collected for polishing. Currently, four Hiltaba Suite granite varieties are quarried on Eyre Peninsula, including Calca Red (Streaky Bay area), Minnipa Red, Desert Lilac (Minnipa area) and Desert Rose (Wudinna area). This survey identified three potentially 'new' granite varieties: a pale pink, medium-grained granite similar in texture to Desert Lilac at Poondana Rock north of Wudinna, a medium to coarse-grained slightly less red variant of Minnipa Red from north of Minnipa, and a finer-grained Minnipa Red variant from the Buckleboo area. These outcrops, together with twelve other outcrops which offer potential to provide future commercial reserves of currently available granite building stone varieties, all warrant further investigation.
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