This cache is not at the co-ordinates listed, they're for small National Trust car park at the corner of Gayhouse Lane and Hornecourt Hill.
I DO NOT Reccomend that you try this cache at night! All will become clear when you find the cache.
The cache can be found by solving the following.
N 51 11. Fluorite Tugtupite Corundum W 000 05 Calcite Spodumene Massicot
This cache has been placed with kind permission of the National Trust GEOCACHING ON NATIONAL TRUST PROPERTY IS AT YOUR OWN RISK