Fallowfield Mine
Also within
Condition (Natural England)
Favourable (2)
| Unit | Feature | Condition | Area (ha) | Assessed |
|---|---|---|---|---|
| NY930672 | — | Favourable | 0.4 | 2012-02-08 |
| NY936675 | — | Favourable | 0.4 | 2012-02-08 |
Description
Area, 0.19 hectares 0.47 ac Description Fallowfield Mine is one of the two world type localities of the very rare double carbonate mineral alstonite. While the other type locality Brownley Hill Mine, near Alston no longer yields the mineral, specimens can still be found from dumps at Fallowfield, even though these are now largely overgrown and planted with trees. Alstonite is found associated with witherite and baryte and is often finely crystallised showing the characteristic pseudohexagonal pyramids. This site provides evidence of the status of the rare double carbonate minerals in the North Pennine paragenetic sequence.