Anson Resources (ASX:ASN), through its subsidiary Blackstone Minerals, is set to start testing historic diamond core and large chips at the Green River project in Utah, according to a Tuesday filing with the Australian bourse.

The core will undergo laboratory testing to accurately assess porosity, specific yield, and permeability, with higher porosity expected to lead to an increase in the project's resource estimate, the filing said.

Shares rose 2% in afternoon trade on Tuesday.