| Domain | Definition | ||
| Mining | A quartzo-feldspathic rock that has been altered by alkali metasomatism at the contact of a carbonatite intrusive complex. The process is called fenitization. Fenite is mostly alkalic feldspar, with some aegirine, subordinate alkali-hornblende, and accessory sphene and apatite. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
