Quartz encl. Anhydrite casts (very rare) Fioravanti Coll.

Item Description

An extremely rare and important Swiss quartz specimen, probably from the St. Gotthard Highway Tunnel. Hollow, casted inclusions of former anhydrite blades are dramatically encased in a water-clear, sharply terminated quartz crystal with nifty preferentially coated faces by sparkly chlorite. One of the hollow tubes breaches the edge of a termination face. Complete all-around and nearly pristine, with only a trivial bit of termination and edge wear. Two of the prism faces are contacted, but only trivial bruising is noted. Anhydrite is very rare from Uri and this is a striking and rare included specimen from the Giancarlo Fioravanti Collection. It was obtained in a trade with Modena Mineralogical Museum in 1978. The highway tunnel opened in 1980. Value of such a rarity???