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Cotton pearl (also called "Utter Ethical pearl") is made merely from cotton and mica. Glass pearl is a glass bead dipped or sprayed with pearlescent material, or hollow glass bead filled with pearlescent material. One variation is the Majorica pearl. Wax-filled pearl simulants are hollow glass beads coated with essence d'orient and filled with ...
A lump of glass was found at Eridu in Iraq that can be dated to the twenty-first century BC or even earlier; it was produced during the Akkadian Empire or the early Ur III period. [4] The glass is of blue colour, which was achieved with cobalt; such glass is generally known as Egyptian blue. Thus, such technique was attested in Eridu long ...
The correct definition of a South Sea pearl – as described by CIBJO and GIA – is a pearl produced by the Pinctada maxima [21] pearl oyster. South Sea pearls are the color of their host Pinctada maxima oyster – and can be white, silver, pink, gold, cream, and any combination of these basic colors, including overtones of the various colors ...
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The iridescent nacre inside a nautilus shell Nacreous shell worked into a decorative object. Nacre (/ ˈ n eɪ k ər / NAY-kər, also / ˈ n æ k r ə / NAK-rə), [1] also known as mother-of-pearl, is an organic–inorganic composite material produced by some molluscs as an inner shell layer.
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Today's artisans and crafters work with stone, ceramics, smalti, shells, art glass, mirror, beads, and even odd items like doll parts, pearls, or photographs. While ancient mosaics tended to be architectural, modern mosaics are found covering everything from park benches and flowerpots to guitars and bicycles.
Perlite is currently used in commercial pool filtration technology, as a replacement to diatomaceous earth filters. Perlite is an excellent filtration aid and is used extensively as an alternative to diatomaceous earth. The popularity of perlite usage as a filter medium is growing considerably worldwide.