The stone is fine-grained. There are faint red veins. It is coarse grained at the bottom. The rim is rolled and everted. Only a fragment of the rim remains.
From Giza, Menkaura (Mycerinus) Valley Temple. Excavated by the Harvard University–Boston Museum of Fine Arts Expedition; assigned to the MFA by the government of Egypt.
Harvard University—Boston Museum of Fine Arts Expedition