When these large, "pizza" slabs are cut into smaller smalti tesserae, it's actually the interior edge—not the large surface—that becomes the exposed element. Generally, artists and designers to receive smalti in its smaller form. For large decorative surfaces, these smalti piastrina—which have a smooth exterior surface—are used. Photo 4 of 16 in The Foundry at Domus Orsoni by Jordan Kushins

The Foundry at Domus Orsoni

4 of 16

When these large, "pizza" slabs are cut into smaller smalti tesserae, it's actually the interior edge—not the large surface—that becomes the exposed element. Generally, artists and designers to receive smalti in its smaller form. For large decorative surfaces, these smalti piastrina—which have a smooth exterior surface—are used.