Skaergaardite is a rare mineral named after the famous Skaergaard intrusion in Greenland. The word is pronounced /skɛərɡærdaɪt/ with stress on the second syllable. The spelling reflects the mineral's complex chemical composition, which consists of sodium, calcium, iron, sulfur, aluminum, and oxygen. The mineral was discovered in 1981 by geologists studying rocks from the Skaergaard intrusion. Despite its rarity, skaergaardite has become an important mineral for scientists studying the chemical processes that occurred during the formation of the Earth's crust.
The word "skaergaardite" is derived from the name of a geological formation called the Skaergaard intrusion, located in East Greenland. The formation was named after neighboring Skaergaard Island, where it was first discovered and studied extensively. It is a large layered igneous intrusion that is rich in a mineral called "troctolite", which contains plagioclase feldspar and olivine. The mineral "skaergaardite" is a rare member of the nickel-iron alloy mineral series that was discovered in this formation. Therefore, the word "skaergaardite" is named after the Skaergaard intrusion, from which it was first identified.