(Belongs to Ehime prefecture, but closest city is Innoshima in Hiroshima prefecture, leading to erroneous labels assigning Yuge to Hiroshima.) Al-Ti-Fe-rich skarn in marble bed in a limestone quarry.
IMPORTANT NOTE: Sadanagaite/magnesiosadanagaite originally described from here was renamed/redefined as potassicsadanagaite. Please ignore previous references to sadanagaite or magnesiosadanagaite from this locality.