This larger-than-average-sized Mull agate was found in June of 2015, on a beach a little east of the Fossil Tree at Burg, in an area known as "The Wilderness". Generally, agates here, in my small experience, tend to be fortification and sometimes include mossy celadonite inclusions. They can appear slightly more blue than grey in some cases, and most nodules found are small, being around 2-4cm in diameter.
The area from which this stone originates is nearly 7 miles from the last permitted car park, the beaches are precipitous, difficult of access, punctuated with large boulders draped with dark green seaweed and the tide is best watched intimately, as being cut-off here would put one in a very serious situation indeed.
During my as yet sole excursion to the area, we visited at low tide, timed almost perfectly. I investigated the next cove along from that containing the famous, and sadly well-chiseled impression of the Fossil Tree. There are other impressions here in the vanguard face of that dark, dark lava. Here I picked-up a large nodule of quartz over 10cm in diameter, and also here, similar geodes populate the andesite like crystallized fruit. There can be no doubt that this seldom investigated region remains ripe for the intrepid rock-hunter.
Be warned dear reader, do not treat this landscape with nonchalance. Your delusion will not be tolerated. This is epic, prehistoric, and occasionally malevolent coastline. It remains defiantly wild. I remember my chill at reading of how the seashore here is "broken", and how a metal ladder was installed close to the aforementioned Fossil Tree to allow access and indeed escape at high tide. Needless to say, the ladder is best avoided altogether, being steeply inclined and unnerving. Please consult online guides to find the easier route down to the shore, only accessible while the tide is low.