A range, not a rigid answer.
Marine, salty, warm, musky, mineral, animalic or softly sweet; natural material is highly variable.
Deeper sensory reference
Ambergris
A rare animal-origin material and an influential olfactory idea. Modern perfumery often reaches related effects with other materials.
marinemineralanimalicwarm
Why a perfumer may use the effect.
Historically associated with fixation and now with warmth, radiance and marine-animalic complexity.
Keep the evidence boundary visible.
Ambergris is not amber and a note list cannot by itself prove natural ambergris is in a formula.
Words that change the way you read it.
Ambroxide · musk · marine effects · amber