Marialite

26 in the gallery

Marialite is a tectosilicate mineral within the feldspathoid group, commonly forming prismatic to tabular crystals that can show a vitreous to resinous luster. Its color range includes colorless to pale pink, lavender, or smoky hues, and it often occurs in well-formed crystals that reveal clean faces and sharp terminations. The mineral crystallizes in low-temperature magmatic and contact-metamorphic environments, frequently associated with nepheline-sodalite-bearing rocks, and can be found in pegmatites and alkaline complexes around the world. Notable specimens have been reported from classic mineral localities where delicate crystal forms and pristine condition enhance display value, making marialite a sought-after piece for collectors seeking color, habit, and crystallographic clarity.

Formula
Na4Al3Si9O24Cl
Rarity
Common
Stability
Stable
Collector interest
High Interest
Classification notes
Silicate (Tectosilicate) — Strunz: 9.FB.15 / Dana: 76.3.1.1

Where Marialite is found

About Marialite

Collectors prize marialite for its relatively robust stability and the appeal of its crystal habit, which can include interesting twinning and zoning. The aesthetic combination of translucence, pale hues, and transparent to translucent faces makes it a versatile addition to mineral cabinets or display cases. Its common status means that well‑crystallized examples are accessible from several established sources, providing an opportunity to study the mineral’s structure and its association with other tectosilicates in alkaline rock assemblages.