The fist amulet was used to denote a vigorous action and was made in carnelian, steatite, sard, feldspar, etc1. Position on mummies: wrist. These amulets are of the Late Period

Stone, broken H 2.6
W 1.9, T 1.2 Undated
© 2012 Musée du Louvre/
Antiquités égyptiennes
#E5079

Black stone pierced
for suspension
H 1.6, W 1.0, D 0.6
Late Period-Ptolemaic
Period MET #15.43.42

Steatite pierced for
suspension H 2.1, W 1.3
Roman Period
© 2017 University College
London LDUCE-UC #2422

References

1.Petrie W M F. Amulets, 1914, p. 11 and Fig. 12d