Sample of Adamellite granite or quartz monzonite from the famous Shap Fell, in Cumbria. Also known as Shap granite, the samples are composed of typical granitic minerals including quartz, feldspar and mica. The samples contain large amounts of orthoclase feldspar crystals, giving the rock an overall pink colouration. These crystals are mixed with white and smokey quartz and clear rock crystal along with black flakes of biotite mica. Giving a sharp contrast between the minerals present. Radiometric dating indicates that the granitic pluton or cupola which would eventually forms these samples is approximately 397 million years old, suggesting it formed at some point in the early Devonian period. The granite itself is renowned world wide for its strength and beautiful colour, making it a popular rock for use in kitchen desktops, tables, head stones and more. Adamellite is named after Mt. Adamello in Italy. The samples come in a white card tray with an information label.