Birmingham Museum and Art Gallery conservators are employing a technique called X-ray Fluorescence (XRF).

BBC: Staffordshire Hoard X-rayed by Birmingham museum

Stoke-on-Trent City Council and Birmingham Museum and Art Gallery jointly own the original hoard, which includes 3, 900 artefacts.

BBC: Staffordshire Hoard inquest rules most new items treasure

Stoke-on-Trent City Council and Birmingham City Council jointly own the 3, 500 artefacts and have permanent displays at the Potteries Museum and Art Gallery and Birmingham Museum and Art Gallery.

BBC: Staffordshire Hoard: Bid to keep Anglo-Saxon treasure