Stilbite with Fluorapophyllite-K

specimen number:
2072321

location:
Jalgaon, Maharashtra, India

description:
Attractive lustrous peach colored crystals of stilbite to 5.0 cm in size across the top of matrix with glassy mostly gemmy colorless pseudo-cubic crystals of fluorapophyllite. Very minimal damage present, overall in good condition.

The Jagaon area, located in the Aurangabad District of Maharashtra, India, is a significant mineral locality within the Deccan Traps volcanic province. Geologically, the region is composed of stacked tholeiitic basalt flows where cooling processes created gas vesicles that were later mineralized by hydrothermal activity. This site is specifically noted for producing distinctive specimens of colorless fluorapophyllite-K, which often forms as sharp, transparent, and highly lustrous crystals. These crystals are frequently found in association with stilbite that typically exhibits a soft pinkish or peach-colored hue, providing a subtle and aesthetic contrast to the clear apophyllite. Historically, mining and quarrying in the Jagaon region have primarily focused on extracting basalt for infrastructure and construction projects. Most mineral specimens were recovered as a byproduct of these industrial activities, particularly during the peak of production in the 1990s and 2000s. As of 2026, the locality remains a classic reference for mineralogists studying the crystallization sequences of zeolites and related minerals within the Indian volcanic plateau.

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