Classification of Amber Gemstones
Natural Baltic amber (Succinite) – gemstone which has undergone mechanical treatment only (for instance: grinding, cutting, turning or polishing) without any change to its natural properties.
Modified Baltic amber (Succinite) – gemstone subjected only to thermal or high-pressure treatment, which changed its physical properties, including the degree of transparency and colour.
Reconstructed (pressed) Baltic amber (Succinite) – gemstone made of one Baltic amber stone or many pieces pressed in high temperature and under high pressure without additional components.
Bonded Baltic amber (Succinite) (doublet, triplet) – gemstone consisting of two or more parts of natural, modified or reconstructed Baltic amber bonded together with the use of the smallest possible amount of a binding agent necessary to join the pieces.