What medium is "Nefertiti breast and shoulder fragment, cartouche [of Aten]"?

Nefertiti breast and shoulder fragment, cartouche [of Aten] is Indurated limestone.

Is "Nefertiti breast and shoulder fragment, cartouche [of Aten]" in the public domain?

Yes, Nefertiti breast and shoulder fragment, cartouche [of Aten] is in the public domain and available for free download under CC0 license.

This artwork was created ca. 1352–1336 B.C..

Unknown Artist

ca. 1352–1336 B.C.

Medium

Indurated limestone

Dimensions

H. 14 × W. 22 × D. 15 cm (5 1/2 × 8 11/16 × 5 7/8 in.)

Classification

Nefertiti, breast and shoulder, cartouche

Period

New Kingdom, Amarna Period

Department

Egyptian Art

Museum

Metropolitan Museum of Art, New York, NY

Credit

Gift of Edward S. Harkness, 1921

Accession Number

21.9.435