Rare 'Floating Gold' Discovered on US Beaches Faces Legal Scrutiny

A substance known as ambergris, sometimes called 'floating gold' and valued by perfumers for its unique scent, has been found by beachgoers on U.S. shores, prompting attention due to its illegal status in the United States. While fetching thousands of dollars per ounce on the international market, possession and sale of ambergris are prohibited in the U.S. under the Endangered Species Act and the Marine Mammal Protection Act.

Ambergris is a waxy, solid mass formed in the digestive system of sperm whales, believed to aid in digesting hard objects like squid beaks, which form a significant part of their diet. Over decades of floating in the ocean, it develops a distinctive, sought-after aroma. Historically, it was a key ingredient in luxury perfumes, including Chanel No. 5, though modern fragrances like Creed's Aventus now utilize synthetic alternatives due to its rarity.

Kristen Marvin, a Florida resident, discovered her first piece of ambergris on Melbourne Beach in 2024, initially mistaking it for melted plastic. Its lightweight nature and waxy texture prompted further investigation, including a smell test and a hot needle test, which confirmed its identity. Since then, Marvin has found two additional pieces. She has contacted the National Oceanic and Atmospheric Administration (NOAA) regarding her finds and has turned one piece over to a local whale conservation group.

While the legal status of ambergris in the U.S. makes it risky to publicize discoveries, this anonymity may mean the substance is more common on American beaches than widely believed. In contrast, countries like the United Kingdom and Canada permit the sale of ambergris. In 2012, an eight-year-old boy in England found a piece estimated to be worth $64,000 at the time.

Marvin currently possesses two pieces of ambergris and hopes to use them for educational purposes in workshops for children, emphasizing the substance's natural origin and storytelling potential over its monetary value. The global sperm whale population has significantly declined, from an estimated 1.1 million to 300,000, largely due to historical whaling, contributing to the rarity of ambergris, as only a small percentage of sperm whales produce it.