$300Median
2Sold (12 mo)
$400Last sale
Clinoptilolite specimens for sale
2 for sale · $200–$400 USD
3 in the gallery
Clinoptilolite is a hydrated aluminosilicate mineral in the zeolite group. It forms as a micaceous to tabular crystal habit and commonly occurs in well-formed crystals and fibrous aggregates. Its color ranges from white to pale yellow, and it often displays a vitreous to silky luster when seen in thin edge surfaces. The mineral’s porous framework makes it a notable specimen for display and study, with characteristic cavity structures that can trap water and other volatiles, contributing to its distinctive texture and appearance.
- Formula
- Ca3(Si30Al6)O72 · 20H2O
- Rarity
- Common
- Stability
- Moderately Stable
- Collector interest
- Moderate Interest
- Classification notes
- Tectosilicate; framework silicate, Zeolite group
Key characteristics
- Crystal system
- monoclinic
- Mohs hardness
- 3.5–4
- Specific gravity
- 2.1–2.2
- Luster
- vitreous, pearly
- Transparency
- transparent, translucent
- Color
- colorless, white, gray, yellow, red, pink
- Streak
- white
- Cleavage
- perfect
- Fracture
- uneven
- Crystal habit
- tabular, prismatic, granular, massive
Buy Clinoptilolite specimens
View all 2Where Clinoptilolite is found
Top localities
- Nashik2 specimens
- SK Star Claim #21 specimen
About Clinoptilolite
Significant specimens have been reported from India, Italy, and the United States, where zeolite-rich volcanic rocks and hydrothermal environments provide suitable paragenesis. Clinoptilolite commonly forms in altered tuffs and other low-temperature hydrothermal settings associated with volcanic activity, sometimes occurring alongside other zeolites and associated silica minerals. Collectors appreciate its classic zeolitic morphology, its relative abundance compared with rarer zeolites, and the nuance of locality-driven color and luster variations found in museum-grade slices and cabinet specimens.
