sadanagaite

Etymology
Named in 1984 by Hidehiko Shimazaki and others in honour of Ryoichi Sadanaga (定永両一) (1920-2002), professor of crystallography at the University of Tokyo.

Sadanaga +

Noun

 * 1)  A monoclinic mineral containing aluminum, calcium, hydrogen, iron, magnesium, oxygen, potassium, silicon, sodium, and titanium.