04 Nefelin

01 Drill samples

Geologists drill for samples from the deposit in order to find the best nepheline syenite.
1. Superior quality nepheline syenite. The pink and brown minerals are nepheline.
2. Nepheline syenite-pegmatite. A coarser variant but still good quality.
3. Diabase. Iron minerals to be discarded.
4. “Rødsleppe”. Transformed nepheline syenite, also discarded.