$200Median
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Phillipsite specimens for sale
1 for sale · $200 USD
6 in the gallery
Phillipsite is a hydrated calcium aluminum silicate of the zeolite group. It forms as colorless to pale yellow to white crystals and grains with a vitreous to pearly luster, often crusts or fills cavities in volcanic rocks. Its structure provides a porous framework that can host water and other small molecules, typical of zeolites that crystallize from hydrothermal or alteration environments.
- Formula
- Ca3(Si10Al6)O32 · 12H2O
- Rarity
- Common
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Zeolites; Tectosilicates (framework silicates); Zeolite group (Strunz 9.G).
Buy Phillipsite specimens
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About Phillipsite
Notable specimens come from classic zeolite localities in Italy and France, where phillipsite occurs alongside other zeolites in basaltic or rhyolitic host rocks. The mineral can appear as part of pale, radiating aggregates or as delicate tabular crystals within vuggy cavities, making it a staple for collectors who enjoy zeolitic mineral associations. Its relatively fine-grained habit and tendency to form in well-crystallized masses contribute to its appeal for display and study.
Collectors prize phillipsite for its historical occurrence and its role in understanding zeolite formation. While common in some regional zeolite assemblages, high-quality, well-formed crystals with clear outlines and crisp luster remain desirable for reference collections and display cabinets alike.
