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districts, is of a deep olive-green, but this is varie gated by veins or bands and blotches of rich brown ish-red, or blood-red, mixed with lighter tints. This variety may be obtained at the Balk, near Lande- wednack, at Kynance Cove, at the Signal-staff Hill, near Cadgwith, at Cennack Cove, St. Keverne, and on Goonhilly Downs. 1 A variety with an olive-green base, striped with greenish-blue steatite veins, is found near Trelowarren ; and a third and especially beautiful variety, at Maen Midgee, Kenvith Sands, in which the deep reddish-brown base is studded with crystals of diallage, which shine out with a metallic lustre from a polished surface. 2 Describing this stone, Mr. R. Hunt says— 1 For purposes of ornament this elegant stone is well adapted, being moderately soft, but not brittle, and therefore easily worked, while it is sufficiently hard to receive an excellent polish. It was formerly thought that blocks of a large size could not be obtained ; quarries have, how ever, been opened, and it is found that the size and solidity of the blocks increase with the depth from the surface. There are few spots around the British coast more beautiful and grand than Kynance Cove, where the serpentine rock, in all its varied dyes, is 1 Geology of Cornwall, Devon, and Somerset, p. 499. 2 Another variety has veins of white steatite traversing a base of a reddish brown colour, of which specimens may be seen in the Museum of Practical Geology, London.