It occurs with cavansite, heulandite, stilbite, analcime, apophyllite and calcite. It occurs associated with kinoite, gilalite, stringhamite, junitoite, clinohedrite, xonotlite, apophyllite, calcite and tobermorite. It is a phyllosilicate and a member of the apophyllite group. Minerals associated with gyrolite include apophyllite, okenite and many of the mother zeolites. It occurs with zeolites, apophyllite, analcime, calcite, gypsum and pyrite. Associated minerals include quartz, apophyllite, babingtonite, heulandite, stilbite and other zeolites. Junitoite occurs in association with apophyllite, calcite, kinoite, smectite, and xonotlite. Bultfonteinite has been found in association with afwillite, apophyllite, calcite, natrolite, oyelite, scawtite, and xonotlite. India also contains many stones which are semiprecious like-zoisite, apophyllite, cavansite, muscovite mica, almandine, etc. The name apophyllite refers to a specific group of phyllosilicates, a class of minerals.