Pair statues, usually depicting a husband and wife, were frequently placed in a serdab, the hidden statue chamber often found in nonroyal tomb chapels of the Old Kingdom. The Egyptians believed that the spirit of the deceased could use such a statue as a home and enter it in order to benefit from gifts of food that were brought to the offering chapel of the tomb.
Spearhead, Late Jomon period (ca. 1500–1000 b.c.) Japan Stone L. 3 1/8 in. (7.9 cm) The Harry G. C. Packard Collection of Asian Art, Gift of Harry G. C. Packard, and Purchase, Fletcher, Rogers, Harris Brisbane Dick and Louis V. Bell Funds, Joseph Pulitzer Bequest, and The Annenberg Fund Inc. Gift, 1975 (1975.268.200)
Arrowheads/slate rock/limestone? Beautiful plate from an 1897 book on Native Americans, via Holcroft on Etsy.
Porfirio Díaz standing next to the Aztec Sun Stone. The Aztec calendar stone, Mexica sun stone, Stone of the Sun (Spanish: Piedra del Sol), or Stone of the Five Eras, is a large monolithic sculpture that was excavated in the Zócalo, the main square of Mexico City, on December 17, 1790. It was discovered while Mexico City Cathedral was being repaired. The stone is approximately 12 feet across and weighs approximately 24 tons.
Neolithic Quern Stone - Quern-stones are stone tools for hand grinding a wide variety of materials. They were used in pairs. The lower, stationary, stone is called a quern, while the upper, mobile, stone is called a handstone. They were first used in the Neolithic to grind cereals into flour