This high-grade green Heulandite originates from the legendary Deccan Traps of Maharashtra, India, one of the largest volcanic provinces on Earth. Formed within ancient basalt flows created by massive flood-basalt eruptions during the Late Cretaceous period, this specimen represents a classic example of secondary mineralization in vesicular basalt.
Heulandite is a member of the zeolite group, crystallizing from low-temperature hydrothermal fluids that percolated through gas cavities left behind as lava cooled. Over time, silica-rich fluids deposited layer upon layer of crystal growth, producing the distinctive wedge-shaped crystal habits and glassy luster that make Heulandite immediately recognizable to collectors.
The green coloration seen in this specimen—highly sought after among zeolite collectors—is typically attributed to trace element substitution and growth conditions unique to certain pockets within the Deccan basalt sequence. Maharashtra is globally renowned for producing some of the finest zeolite specimens ever recovered, and pieces of this quality are increasingly difficult to source.
This is a specimen that tells a geological story:
volcanism → gas cavities → hydrothermal circulation → crystal growth, preserved exactly as nature left it.
You will receive: Exact specimen shown.
Geological & Mineralogical Highlights
- Mineral: Heulandite
- Group: Zeolite
- Crystal System: Monoclinic
- Host Rock: Basalt (Deccan Traps flood basalts)
- Formation: Secondary hydrothermal mineralization in vesicles
- Age of Host Rock: ~66 million years (Late Cretaceous)
- Locality: Maharashtra, India
Collector Notes
- Classic Indian zeolite locality prized worldwide
- Excellent crystal definition and natural luster
- Strong educational and display value
- Ideal for cabinet collections, geology teaching sets, or curated mineral displays
Specimen Details (Fill In)
- Dimensions can be found in listing photos.
- Condition: Natural, unaltered mineral specimen
- Treatment: None
Shipping & Care
This specimen will be professionally packed with crystal protection in mind, ensuring delicate edges and crystal faces arrive safely. We ship minerals the way collectors expect—secure, padded, and stable
- Ships within 2-5 business days
- Combined shipping available
- Carrier chosen for safest transit
Metaphysical Note:
Some in the metaphysical community associate Heulandite with introspection, dream recall, and emotional processing. These interpretations are cultural and personal beliefs rather than scientific claims, but many collectors enjoy reflecting on both the geological history and symbolic meanings of minerals they display.