| 1. | Biotite, cancrinite and sodalite are characteristic of this rock.
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| 2. | It is essentially a microcline, sodalite and cancrinite variety of nepheline syenite.
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| 3. | Although massive sodalite samples are opaque, crystals are usually transparent to translucent.
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| 4. | Most sodalite will fluoresce orange under ultraviolet light, and hackmanite exhibits tenebrescence.
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| 5. | Sodalite or hauyne may also be present, but nepheline is typically absent.
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| 6. | Sodalite transforms into cancrinite when exposed to high temperature.
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| 7. | Eventually, sodalite is found along hydrothermal fractures.
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| 8. | I've went ahead and created sodalite with the new facto / infobox.
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| 9. | These last consist of an intermixture of nepheline or sodalite and alkali-feldspar.
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| 10. | There is a sodalite mine to the east.
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