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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
Dimensions approx
Dimensions at widest points approximately 200 mm x 50 mm x 10 mm thick
Dimensions at widest points approximately 110 mm x 100 mm wide x 6
170 mm x 100 mm x 9 mm
OJ127 A slab
Polished Porphyry . PO 122 oldest agate in the world Dimensions approxPO122. 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
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