Store will be closed from June 12th until early July as we will be away mining.
PO122. Pink porphyry slab, cut and polished on one side.
From Mindoolah, Western Australia.
Dimensions at widest points approximately 290 mm x 165 mm x 10 mm thick.
Weighs 898 grams.
Porphyry is a general term that is used rather loosely for igneous rocks which contain relatively large isolated crystals set in a fine-grained groundmass.
The porphyry pictured here has pinkish coloured clinozoisite crystals set in a ground mass of dolerite.
The clinozoisite has replaced but retained the shape of plagioclase feldspar crystals.
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