This is a 1950's vintage Old Stock specimen of Ram Horn Selenite from Chihuahua, Mexico from a 1950s-1990s collection. Rams Horn Selenite is very difficult to find. This specimen with a curved outgrowth of a tubular crystal known as Rams horn.
These are fragile and will be boxed before shipping, however some loss may be possible during handling.
This specimen measures 9 cm x 6 cm x 5 cm (3.5 x 2.5 x 2")