We are used to hearing Cromarty (with a y) on the shipping forecast (between Forth and Forties), and it is actually an estuary, whereas Cromartie is the title of that renowned geologist (and explosives expert) the Earl of Cromartie, who lives near Strathpeffer, north of Inverness.
This is a wonderful example of one of the Earl's magnificent collection of Scottish Agates, many of which he has gathered himself - occasionally abseiling down cliff faces to claim them.
Scottish Agates were renowned around the world in the 19th century, and much favoured by Queen Victoria. At their peak, there were over 2,000 people employed across Scotland making jewellery from Scottish Agates.
Here you can see the characteristic yellows, golds and reds that are rarely found in agates anywhere else in the world - and a delightfully bright reminder of Scottishness.