uncalcinated
Uncalcinated refers to a substance that has not undergone calcination. Calcination is a thermal treatment process involving heating a solid material to a high temperature without melting or vaporizing it. This process typically drives off volatile components and causes a loss of mass, often leading to a chemical or physical change in the material. Therefore, an uncalcinated substance is one that has not been subjected to this high-temperature heating.
For example, in the context of minerals or ores, uncalcinated material would be in its raw, natural