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This Specimen has been sold.
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8.6" Heulandite, Apophyllite and Stilbite on Mordenite - Composite
This is a composite association of peach colored stilbite, pink orange heulandite and green zoned apophyllite crystals on a bed of natural mordenite. The crystals from the association, as well as the matrix are all from Maharashtra, India.
The apophyllite and stilbite crystals have been mounted to the moredenite encrusted cavity and there is a repaired crack that runs through the specimen. If this was an entirely natural association the price would be many times higher.
The apophyllite and stilbite crystals have been mounted to the moredenite encrusted cavity and there is a repaired crack that runs through the specimen. If this was an entirely natural association the price would be many times higher.
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.
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.
SPECIES
Heulandite, Apohyllite, Stilbite & Mordenite
LOCATION
Maharashtra, India
SIZE
8.6 x 6 x 5"
CATEGORY
ITEM
#117156
