<Li> <P> Nacre pendant engraved Solomon Islands 1838 </P> </Li> <P> Nacre pendant engraved Solomon Islands 1838 </P> <P> Both black and white nacre are used for architectural purposes . The natural nacre may be artificially tinted to almost any color . Nacre tesserae may be cut into shapes and laminated to a ceramic tile or marble base . The tesserae are hand - placed and closely sandwiched together, creating an irregular mosaic or pattern (such as a weave). The laminated material is typically about 2 millimetres (0.079 in) thick . The tesserae are then lacquered and polished creating a durable and glossy surface . </P> <P> Instead of using a marble or tile base, the nacre tesserae can be glued to fiberglass . The result is a lightweight material that offers a seamless installation and there is no limit to the sheet size . Nacre sheets may be used on interior floors, exterior and interior walls, countertops, doors and ceilings . Insertion into architectural elements, such as columns or furniture is easily accomplished . </P>

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