9.1" Polished Porphyry Stone Slab - Western Australia
This is a 9.1" wide slab of porphyry, collected near the town of Cue in Western Australia. It has been cut flat into a slab and polished to a glossy-finish on one side. It displays nicely on the included display stand.
Porphyry is a general term that is used to refer to igneous rocks containing relatively large, isolated crystals set in a fine-grained ground mass. This porphyry has pinkish colored clinozoisite crystals in a mass of dolerite. The clinozoisite has replaced but retained the shape of plagioclase feldspar crystals.
Clinozoisite & Colerite
Mindoolah, near Cue, Western Australia
9.1 x 7.9", .25" thick