Nenfro Explained

Nenfro is a volcanic rock, gray tuff or banded trachyte (Brocchi) or leucite phonolite lava (Rosenbusch) with a soft but compact structure,^[1] typical of the Viterbo region that the Etruscans used in their sculptures of northern Lazio Cimini hills near Rome, Italy.^[2]

• The Winged Lion of Vulci, in the Louvre
• The Centaur of Vulci, preserved in the Villa Giulia in Rome
• The sarcophagus of Laris Pulena MS 3488 of Civita Musarna.^[3]
• The sarcophagi figured at the galleries and the entrance to the Tarquinia National Museum

One of its features is to take a pinkish tint when drying.^[4]

References

1. http://www.dizi.it/nenfro Definition from Dizi.it
2. Giovanni Battista Brocchi (1817); H. Rosenbusch (1888)
3. https://books.google.com/books?id=mkrmZB9WSZEC&dq=Nenfro&pg=PA54 Catalogue of the Etruscan gallery of the University of Pennsylvania Museum
4. http://www.persee.fr/web/revues/home/prescript/article/crai_0065-0536_1967_num_111_1_12087?_Prescripts_Search_tabs1=standard& Œuvres d'art étrusque découvertes à Castro.