The hill of Barrow has a range of various types of chlorite-rich Quartz, some of these can be very hard. Other minerals can be found including apatite and glaucodot. These can be collected in the debris on the South facing slope.
There are plenty of Minerals from Barrow, especially some excellent Quartz. But this is not a location for finding fossils.
(Not Recommended for Children)
The scree slopes can be slippery and dangerous, it is also a long walk, therefore this location is not suitable for children.
Barrow is fairly easy to find and the walk is not anywhere near as bad as Causey Pike since you simply follow the old mine road, which is fairly easy going.
Scree
Minerals at this location can be found in the scree and debris slopes on the side of the hill.
Barrow scree slopes can be very steep and slippery, you should take extreme care. DO NOT climb the scree slopes too high, keep near to the base, it may be easy climbing up, but when you come down again, you will realise how steep it really is.