The variety of amber shapes reflects where they were formed - on the surface of the trunk or inside.

Thus amber's morphological varieties can be either interior or exterior.

Interior morphological shapes include wood, sub-bark and bark resin lenses.

Exterior amber shapes may include amber icicles, drops, trunk and ground amber.

Of interest:

The pieces of amber on display at the Palanga, Lithuania Amber Museum weigh from several grams to several kilograms. The largest piece in its collection is the Sun Stone, which weighs 3.524 kg.

One of the largest pieces of Baltic amber is found at the Berlin Museum of Natural History (9.750 kg).

(Source: Lithuanian Art Museum,