Primary Mineral(s): Apophyllite
Secondary Mineral(s): Stilbite

Size: 2.5 inches x 2.5 inches
Weight: 83 grams

Locality: Jalgaon, Maharashtra, India

This specimen presents a striking association of two zeolite-family minerals: sharply terminated green apophyllite crystals paired with delicate stilbite.

Apophyllite's characteristic pyramidal terminations display a vivid green coloration—a chromatic signature that distinguishes premium examples from paler variants. Stilbite's pearlescent, sheet-like crystal habit provides textural contrast and mineralogical complexity to the matrix. 

Both minerals form in vesicular volcanic rocks through low-temperature hydrothermal processes, their co-occurrence reflecting specific geochemical conditions. High-quality specimens combining vibrant apophyllite coloration with well-defined stilbite geometry have become increasingly scarce as prime collecting localities face depletion and access restrictions.

This example represents a convergence of aesthetic appeal and mineralogical significance—a tangible record of hydrothermal crystallization processes and a vanishing category within the collector's market. An investment-grade specimen capturing nature's geometric precision at the intersection of chemistry and time.

# B 6884