A rare, excellent, and showy thumbnail from the well-known Tae Hwa (Tong Wha) Mine of South Korea. The 2.1 cm, fluorescent Fluorite is an attractive mint-green, partially gemmy, and it has numerous needle-like inclusions of what may be Ferberite. The matrix is lustrous Cassiterite, with small amounts of Chalcopyrite and Scheelite adding to the strength of this specimen's combination. Acquired by Kay in 1974, this thumbnail was #7155 in her collection.