Amygdaloid Island by Amygdaloid Channel from Isle Royale. It had relatively low visitation until the 1990s, when the growth of sea kayaking made it possible for human-powered visitors to approach the island. The waters of Lake Superior around Amygdaloid Island are notoriously dangerous, and inexperienced kayakers are not encouraged to navigate them. The island is the site of the "Amygdaloid Island Flow", a deposit of basaltic lava with silica inclusions. After the lava cooled, the inclusions hardened into pink agate specimens. The agates of Amygdaloid Island are characteristically almond-shaped or amygdaloidal, hence the name "Amygdaloid". Amygdaloid Island Amygdaloid Island is an island
Cut to shape — the unique 1856 British Guiana 1c magenta — is cut into an octagonal shape. Consequently, it has been referred to as being cut to shape, although technically that term is incorrect as the stamp design is rectangular in shape. Cut to shape Cut to shape is a philatelic term referring to a postage stamp or postal stationery indicium (printed stamp image) that has been cut to the shape of the design, such as an octagon, circle or oval, instead of simply cut into a square or rectangular shape. Stamps cut to shape almost always command a lower price than