Aragonite var: flos-ferri

*from Santa Eulalia, Aquiles, Serdan, Chihuahua, Mexico.
*60 x 45 x 50 mm.

A classic example of flos-ferri. This piece is very clean, even free from hand dirt, which you don't see on old specimens. 

ex: j. Dobo jr collection #144. Note the back of his label says he acquired it Feb. 2, 1958 from Dr. Henegradner (I think).