Bi-colored Aquamarine Crystal

Here you get the aquamarine crystal with the colorless up a half while the other disclosing a light blue coloration. the whole crystal has been crystallized before it had contact with kind of aggressive fluid, which cost a very unusual growth marks at the surface and several hollow tubes running through the crystal. Fe- containing inclusions in the upper part causing slightly brownish coloration. The crystal itself doesn't show any damages apart from the base. Also smaller Cleavelandite crystals are attached to this very interesting and unusual beryl from Pakistan