A hammer designed for splitting and breaking rock for the purposes of field geology, mineral collecting, etc., typically made from hardened steel with one side flat and the other pick- or chisel-shaped.
Origin
Early 19th century; earliest use found in The Eclectic Review.
Definition of geological hammer in US English:
geological hammer
noun
A hammer designed for splitting and breaking rock for the purposes of field geology, mineral collecting, etc., typically made from hardened steel with one side flat and the other pick- or chisel-shaped.
Origin
Early 19th century; earliest use found in The Eclectic Review.