rosenbuschite

Century Dictionary and Cyclopedia

1. n. A silicate of calcium and sodium, containing also zirconium and titanium: it occurs in monoclinic crystals and in fibrous forms of a pale orange color. It is found in the elæolite-syenite of southern Norway.

Wiktionary

1. n. mineralogy A triclinic-pinacoidal mineral containing calcium, fluorine, oxygen, silicon, sodium, titanium, and zirconium.