Suolunite

2 in the gallery

Suolunite is a hydrated calcium silicate mineral with the formula Ca2(H2Si2O7)·H2O. It forms as colorless to white crystals or masses with a glassy to pearly lustre and a generally translucent appearance. The mineral commonly occurs in low-temperature hydration assemblages and can present in compact aggregates or fine platy to fibrous habits, reflecting its layered silicate structure.

Formula
Ca2(H2Si2O7) · H2O
Rarity
Rare
Stability
Moderately Stable
Collector interest
Very High Interest
Classification notes
Silicate; Sorosilicate (Si2O7) with calcium in structure

Where Suolunite is found

Top localities

  1. Mine Lac d'Amiante1 specimen
  2. Québec1 specimen

About Suolunite

Notable specimens are associated with Canadian locales, where hydrothermal or low-temperature alteration environments can favor its formation. Suolunite’s rarity adds to its appeal for collectors, who value its delicate habit, subtle morphology, and the challenge of locating impairingly scarce samples. The mineral’s subdued coloration and rarity make it a quiet but intriguing addition to a curated collection, especially when paired with other silicate hydrates from similar parageneses.