Pentagonite with Cavansite on Dynamic Gemmy Miniature Heulandite. A rare combination specimen featuring both bright blue spiked crystals of Pentagonite in concert with a rich blue crystal of Cavansite on a dynamic based the same beautifully contrasting, exceptionally formed crystals of Heulandite. These natural rich blue minerals are highly desirable among collectors. The Wagholi Quarry of Pune, Maharashtra, India was the only mine where large, lustrous crystals of this type have been found. This legendary location has been both closed and overbuilt, making these rare crystals increasingly hard to find. A perfect small cabinet fine mineral.1.5" x 1" x 2", 1.4 oz.