from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Containing equidimensional grains of metamorphic rock formed by recrystallization
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"The quartzite shows granoblastic and blastopsammitic texture, with grain sizes varying from coarse sand to very fine pebble and with minor microcrystals of sericite, fuchsite, andalusite and iron oxide, besides detrital tourmaline, rutile, and zircon." link
In the most superficial level, there are veins of chalcedonic quartz and quartz with granoblastic texture and occasional coarse crossings, less chalcedony of coloform texture and local pseudomorf quartz after the calcite blade.
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