ESSEXITE - Lanarkshire, Scotland
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ESSEXITE
Craighead, Crawfordjohn,
Lanarkshire, Scotland
Essexite is a rare igneous rock, often with large augite crystals. It is closely related to gabbro and diorite. The name originates from the location of a similar rock in Essex County, Massachusetts, USA.
This example is from the classic locality of Craighead in Lanarkshire where it forms a dyke intruded into the Ordovician rocks of the Southern Uplands. Essexite was once famous in Scotland as one of the rocks used for making curling stones. The curling stones from this quarry were much in demand and known as 'Crawfordjohns'.
This is a small, but very good example with one cut face.
Click on a picture for a larger image
Size: 6 x 5 x 3 centimetres
Weight: 204 grams
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