| Domain | Definition | ||
| Mining | An orthorhombic mineral, Na2 ZrSi6 O15 .3H2 O; in fibrous, columnar, prismatic crystals in albitized nepheline-syenite pegmatites at Narsarsuk, Greenland; Kola Peninsula, Russia; Mont St.Hilare, PQ, Canada; and Tarbagatai, Kazakhstan. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
