Sharp contact between porphyritic granite, with K-feldspar phenocrysts, and aplite with abundant orbicules of tourmaline and quartz. Photo by Mauro Bongiovanni
Sharp contact between porphyritic granite, with K-feldspar phenocrysts, and aplite with abundant orbicules of tourmaline and quartz. Photo by Mauro Bongiovanni
![](https://outcropedia.tectask.org/wp-content/uploads/2023/10/IMG_20210918_153104-1024x768.jpg)
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