 In 1966, gem-quality ruby was discovered in outcrop on what became known as Ruby Island by Dr. Martin Ghisler, with the Geological Survey of Denmark and Greenland (GEUS).Ghisler's scouts and support staff drew heavily from the knowledge of the native population of the nearby village of Qeqertarsuatsiaat (formerly Fiskenaesset).The exploration team discovered ruby in association with the minerals sapphirine, kornerupine, pargasite, and phlogopite, confirming six ruby deposits in the Fiskenaesset district.