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10.5" Green Apophyllite, Heulandite & Stilbite Association - India
This is a gorgeous, natural specimen that contains green apophyllite crystals that formed in association with white heulandite and stilbite crystal clusters. This mineral association was collected from the Pashan Hill Quarry in Maharashtra, India.
Heulandite is a mineral of the zeolite group that also fits within the silicate and tectosilicates groups. It has the general chemical formula (Ca,Na)2-3Al3(Al,Si)2Si13O36 · 12H2O, but the calcium and sodium can be substituted by potassium, barium, or strontium ions. Heulandite crystals will often form as distinctive tabular, radiating crystals with a vitreous luster, and can display a variety of colors including white, green, brown, orange, red, pink, yellow, grey, and black.
About Apophyllite & Stilbite From India
This specimen originates from the Deccan Traps near Pune in western India—one of the world’s largest igneous provinces and an immense volcanic formation created by ancient lava flows. During quarrying or well-digging, miners occasionally break into hidden cavities within the basalt, revealing spectacular pockets lined with zeolite minerals and associated species.
Stilbite is the most commonly encountered zeolite in these deposits, typically forming graceful bowtie, flower-like, or hourglass crystal clusters in a range of colors. The most sought-after examples display soft pink to peach hues. Closely associated with the zeolites is apophyllite, which commonly occurs in the same mineral pockets. Though not a zeolite itself, apophyllite forms striking crystals as either elongated prisms topped with sharp pyramids or near-cubic shapes. While relatively unknown outside mineral circles, both minerals are highly prized by collectors for their delicate pastel colors and elegant crystal habits.
This specimen originates from the Deccan Traps near Pune in western India—one of the world’s largest igneous provinces and an immense volcanic formation created by ancient lava flows. During quarrying or well-digging, miners occasionally break into hidden cavities within the basalt, revealing spectacular pockets lined with zeolite minerals and associated species.
Stilbite is the most commonly encountered zeolite in these deposits, typically forming graceful bowtie, flower-like, or hourglass crystal clusters in a range of colors. The most sought-after examples display soft pink to peach hues. Closely associated with the zeolites is apophyllite, which commonly occurs in the same mineral pockets. Though not a zeolite itself, apophyllite forms striking crystals as either elongated prisms topped with sharp pyramids or near-cubic shapes. While relatively unknown outside mineral circles, both minerals are highly prized by collectors for their delicate pastel colors and elegant crystal habits.
SPECIES
Apophyllite, Stilbite & Heulandite
LOCATION
Pashan Hill Quarry, Pune District, Maharashtra, India
SIZE
10.5 x 5.4"
CATEGORY
ITEM
#135831
