Torbernite (and Meta-Torbernite) from Old Gunnislake Mine, Cornwall

Torbernite from Old Gunnislake Mine, Clitters United Mines, Gunnislake, Calstock, Cornwall, England

Small specimens of Torbernite and Meta-Torbernite from the Old Gunnislake Mine.

Torbernite is a radioactive mineral - a copper uranyl phosphate with the formula Cu[(UO₂)(PO₄)]₂(H₂O)₁₂. Meta-Torbernite is a dehydrated form of Torbernite with the formula (Cu(UO2)2(PO4)2·8H2O).

We currently have a single piece in stock:

• #1 - 4.7x2.8x2.3MM - fantastic micro of meta-torbernite. This specimen was part of Roger Harkers collection and has three of his labels glued to the perky box it comes mounted in. Quite small, and not all that radioactive.The specimen is mounted with glue onto a small wooden stick. The labels are glued to the box; one was loose and has been re-attached with a conservation grade tape. Ex. Roger Harker, A. Johnson collections.