Figure F4. Detail of a radiating pyroxene cluster in spinifex rock 142421, with tiny interstitial laths of plagioclase. A small miarolitic cavity lined with plagioclase occurs at the lower right. Width of view = 0.64 mm; (A) ordinary light, (B) crossed polarizers.

Figure F4. Detail of a radiating pyroxene cluster in spinifex rock (CSIRO sample 142421), with tiny interstitial laths of plagioclase. A small miarolitic cavity lined with plagioclase occurs at the lower right. Width of view = 0.64 mm; (A) ordinary light, (B) crossed polarizers.