Highly fluoresent yellow inclusions of hokkaidoite in opal that fluoresces pink and and purplish blue. Ex Hiromi Yamasaki Collection. Type Locality. Specimen measures 17mm. Photo under longwave UV.
15038 D23-1 Hokkaidoite, Opal, Shikaribetsu Lake, Shikaoi (Shikaoi-Chō), Kato District, Tokachi Subprefecture, Hokkaidō Prefecture, Japan
