1. Biotite, cancrinite and sodalite are characteristic of this rock. 2. Nepheline generally shows partial alteration into natrolite and cancrinite . 3. It is essentially a microcline, sodalite and cancrinite variety of nepheline syenite. 4. Sodalite transforms into cancrinite when exposed to high temperature. 5. The mineral of cancrinite is named after him. 6. Cancrinite occurs in several nepheline-syenites.7. Bystrite has a structure that is shared with many of the minerals in the cancrinite group. 8. It is associated with other minerals typical of undersaturated environments, namely leucite, cancrinite and natrolite. 9. Nepheline is very abundant and there is also cancrinite , sodalite, scapolite, calcite, biotite and hornblende. 10. In high temperature, sodalite would transform to cancrinite of which twelve-ring channels cage prefer bigger cation.
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