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Lepidolite is a lilac-gray or rose-colored member of the mica group of minerals with chemical formula K(Li,Al) 3 (Al,Si,Rb) 4 O 10 (F,OH) 2. [ 2 ] [ 3 ] It is the most abundant lithium -bearing mineral [ 4 ] and is a secondary source of this metal.
Domestic windows were generally small and were made of broad glass or cylinder glass before crown glass was first made in England in 1678. Broad glass is usually around 1.5 to 2 mm thick and uneven, often with scars and marks on the surface where it has been 'ironed' flat, and often has a greenish tint. Later windows often had crown glass ...
Pigmented structural glass [a] was developed in 1900 in the United States by the Marrietta Manufacturing Company of Indianapolis, Indiana. [2] [3] [4] The product was made by combining borax, [5] cryolite, kaolinite, manganese, silica, [4] feldspar, [6] [5] and fluorspar. [6] [5] [b] The fluorides made the glass opaque. [1]
Libbey-Owens merged with the Edward Ford Plate Glass Company in 1930 to form Libbey-Owens-Ford Glass Company. [1] In April 1986, LOF sold its glass business and name to the Pilkington Group, a multinational glass manufacturer headquartered in the United Kingdom. The remaining three business units of the company, Aeroquip, Vickers, and Sterling ...
Frank Lloyd Wright used zinc came for his stained glass windows. [10] Beveled glass work is generally done in zinc came, primarily because of its ability to manage the weight of heavy plate glass; whereas beveled glass works made of lead came are much more likely to buckle or sag over time.
The lower parts of the walls of the 16th century dining hall of St John's College, Cambridge are covered with wood panelling in a linenfold design. An English oak chest with complex linenfold panels. Linenfold (or linen fold ) is a simple style of relief carving used to decorate wood panelling with a design "imitating window tracery", [ 1 ...
In architecture, a paned window is a window that is divided into panes of glass, usually rectangular pieces of glass that are joined to create the glazed element of the window. Window panes are often separated from other panes (or "lights") by lead strips, or glazing bars, moulded wooden strips known as muntins in the US.
For example, the cames that make up the matrix of a stained-glass window, for which lead and zinc were most commonly used, undergo quite a bit of thermal expansion and contraction, eventually resulting in metal fatigue, which in turn weakens the joints between the plates, causing whole panels to deform or simply fall apart (Vogel et al. 2007, 8).
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