Amber (Copal)

Hardness: 2-2.5 (Mohs), relatively soft. Color: Variable, typically yellow, orange, brown; also red, green, blue. Luster: Resinous to waxy. Crystal Structure: Amorphous (lacks crystalline structure). Cleavage: None (fractures conchoidally). Specific Gravity: 1.05-1.12 (very light, floats in saltwater).

Formed from the fossilization of tree resin over millions of years. Copal is an immature form of amber, undergoing less geological time and pressure, and thus is softer. The resin oozes from trees, capturing insects and plant matter, and is then buried and heated, leading to polymerization and hardening. Geological Age: Varies, but true amber is typically tens to hundreds of millions of years old (Cretaceous to Tertiary periods). Copal is much younger, often Pliocene to recent.

Predominantly used in jewelry (beads, pendants, carvings) and ornamental objects. Also used in some traditional medicines and as an artistic medium. Historically, it was used in varnishes and perfumes.

Amber has been prized since ancient times, used for jewelry, adornment, and medicinal purposes. It is famous for preserving ancient life forms (inclusions like insects, plants, air bubbles) which provide valuable insights into prehistoric ecosystems. The distinction between copal and true amber can be difficult without testing; copal is softer and often has a fresher, more resinous scent when heated or rubbed.

Identify in the field by its light weight, warmth to the touch (as opposed to glass or plastic), and characteristic inclusions. It will float in a saturated saltwater solution. True amber can be distinguished from copal by its higher melting point and resistance to solvents (like alcohol or ether). Commonly found in sedimentary deposits, particularly along coastlines (e.g., Baltic Sea region for true amber; Colombia, Madagascar, Indonesia for copal). Tips for collectors: Be wary of fakes made from glass or plastic; check for inclusions and relative warmth. Copal is sometimes sold as amber, so understanding the difference is important for value.