Description
Remarkable specimen of acicular natrolite crystals in a basaltic gangue. These crystals are usually very fragile, but here they are beautifully preserved.
A specimen of natrolite from the Saint-Jean-des-Ollières quarry in the Puy-de-Dôme department of Auvergne.
Ex Bernard Mary Collection.
This post is also available in:













![Mineralogy of France [livre]](https://www.minerals-and-crystals.com/wp-content/uploads/2016/01/mineraux-france-324x324.jpg)
