What is immature amber commonly known as?

Immature amber is commonly referred to as copal. This distinction is important because copal is not fully fossilized like true amber; rather, it is a younger form of resin that has not undergone the complete hardening process over millions of years. As a result, copal typically retains some of the characteristics of fresh tree resin, including its softer texture and sometimes more vibrant colors.

Understanding this classification helps in distinguishing copal from the more ancient amber, which is prized for its longevity and the potential to contain ancient inclusions. The recognition of copal as immature amber is significant in both gemstones and mineralogy, as it influences both the market value and the physical properties related to the material.