3.6" Red-Orange Heulandite Crystal Cluster - Maharashtra, India

This is a 3.6" wide cluster of the zeolite heulandite collected from the Deccan Traps (the world largest basalt flow) in Maharashtra, India. The specimen features aggregations of colorless heulandite within cavities in the basalt, with areas of vibrant red-orange coloration.

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.



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DETAILS
SPECIES
Heulandite
LOCATION
Maharashtra, India
SIZE
Entire specimen: 3.6 x 1.7"
CATEGORY
ITEM
#243871