On the clan Progression page (can't post the link to it):

Clan Treasury (Clan Chest)
A container for money and Items of your Clan. Any Clan member can put money and Items into the Chest but only players with the respective permission are allowed to withdraw from it.

In addition to that, Contributions for lost Clan Wars are transferred into the Clan Chest. You can find out more on rules for using the Clan Chrest here. (Chrest should be chest.)

Statue of Beron
Installed in the Clan Hall, statue of Beron allows to receive the Lucky Mining Spell at the Altar of Kairon. This Spell increased the amount of gathered Resources and received Mastery when using Gathering Professions. (Increased should be increases.)