noun
Rare archaeological term referring to the period when stone and copper tools were used together. The more common term is 金石併用時代.
See also: 金石併用時代
金石併用期は、新石器時代と青銅器時代の間に位置する。
The Chalcolithic period falls between the Neolithic and the Bronze Age.
More common synonym for the same archaeological period.
Compound of 金石 (metal and stone) + 併用 (combined use) + 期 (period).