Hematite, Hiddenite, and Kalunite looked identical to Zoisite, Nephrite and Jadeite respectively. The variety was given the name Hiddenite. They are collectively known as the Hiddenite Gem Mines. In the US, emeralds can be found in Hiddenite, North Carolina. The members of the Neo-Four Kings of Heaven were Kunzite, Hematite, Hiddenite, and Kalunite. The first discovery of the hiddenite stone was made in 1879 by W. E. Hidden. Hiddenite, North Carolina, United States, is a centre for the mining of gemstones. The town of Hiddenite was incorporated in 1913, but its charter was repealed in 1919. The community in which the gemstones were first found would later be renamed "Hiddenite". The annual Hiddenite Half-Marathon is held at the same time. U.S. Route 64 bypasses Hiddenite to the south. The Hiddenite Celebration of the Arts is held on the fourth Saturday in September. Hiddenite has a strong vitreous luster and displays strong colors due to pleochroism. Hiddenite was once noted as a health resort because of its sulfur springs. Hiddenite is a pale-to-emerald green variety of spodumene that is sometimes used as a gemstone.