description Cancrinite Overview
Cancrinite is a feldspathoid mineral composed chiefly of sodium, calcium, aluminum, silicon, carbon, oxygen, and water. It forms mainly in nepheline syenites and related alkaline igneous rocks, where it can occur alongside nepheline and other feldspathoids. Its colors range from pale yellow and white to orange, pink, and gray. Transparent or attractive specimens may be cut as collector gemstones, but the mineral is uncommon in jewelry.
help Cancrinite FAQ
What is cancrinite made of?
Cancrinite is a feldspathoid mineral composed chiefly of sodium, calcium, aluminum, silicon, carbon, oxygen, and water. Its chemistry distinguishes it from ordinary feldspar minerals.
Where does cancrinite form?
Cancrinite forms mainly in nepheline syenites and related alkaline igneous rocks. It can occur alongside nepheline and other feldspathoids in those rocks.
What colors can cancrinite be?
Cancrinite can occur in a range of colors rather than having one fixed appearance. The exact shade depends on its mineral composition and the specimen's geological setting.
Is cancrinite a feldspar?
Cancrinite is a feldspathoid, not a conventional feldspar. It is commonly found with nepheline in alkaline igneous rocks such as nepheline syenite.
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