syenite in a sentence

Examples

1. It occurs in hornfels and siliceous marble xenoliths within and adjacent to a nepheline syenite intrusion.
2. In places the nepheline syenite assumes the form of a dark rock with large rounded white spots.
3. During the alkali syenite crystallization, the carbonate portion of silicate magma was separated forming carbonatitic magma.
4. Lujavrite is a rare variety of nepheline syenite having amphibole, aegirine pyroxene, nepheline and feldspar.
5. Biotite is rare, because in a syenite magma the formation of feldspar consumes nearly all the aluminium.
6. The segregation of the silica from the melt leaves it in a state that may favour syenite formation.
7. Close associations between syenite and monzogranites are common, particularly in post-orogenic extensional / transtensional settings.
8. This mineral occurs as an anchimonomineral veinlet that cross-cuts poikilitic nepheline syenite ( Hawthorne 2012 ).
9. Some of these terrestrial rocks are carbonatite, kimberlite, alkaline syenite, some rocks of sills and anorthosite.
10. The tomb is a syenite stone from the Vitosha mountains where Vazov loved to walk . ( ) ]]