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Kurt Swenson was the fourth generation of his family to own and operate Swenson Granite Co. and its quarry on Concord's Rattlesnake Hill. ... That includes the original 1883 bill of sale for ...
In gemology, chatoyancy (/ ʃ É™ ˈ t ɔɪ. É™n s i / shÉ™-TOY-É™n-see), also called chatoyance or the cat's eye effect, [1] is an optical reflectance effect seen in certain gemstones, woods, and carbon fiber. Coined from the French œil de chat, meaning 'cat's eye'. The chatoyant effect is typically characterized by one or more well-defined ...
Originating from Namibia and China, where it is mined for use as a decorative stone due to its chaotic chatoyancy and brecciated structure. Ranging in colour from brownish-red, to blue-grey, and chatoyant yellow. The Chinese variety are predominantly a reddish-brown, with regions of chatoyant blue and yellow.
Asterism on the surface of a blue star sapphire. A purple-pink star sapphire displaying asterism in a platinum ring.. An asterism (from Ancient Greek á¼€στήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone.
Jul. 5—CONCORD It seems unthinkable that a time would come when the Granite State no longer produces granite. But last month, the last commercial granite quarry in New Hampshire was quietly shut ...
Stone Mountain, Georgia, site of granite quarrying from the 1830s. Its granite was used in the locks of the Panama Canal and in steps to the U.S. Capitol building. The mountain is known for its Confederate memorial carving started by Gutzon Borglum and for association with the Ku Klux Klan revival in 1916.
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