Most Precious Wood

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Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. The name opal is believed to be derived from the Sanskrit word upala (उपल), which means 'jewel', and later the Greek derivative opállios (ὀπάλλιος). There are two broad classes of opal: precious and common. Precious opal displays play-of-color (iridescence); common opal does not. Play-of-color is defined as "a pseudo chromatic optical effect resulting in flashes of colored light from certain minerals, as they are turned in white light." The internal structure of precious opal causes it to diffract light, resulting in play-of-color. Depending on the conditions in which it formed, opal may be transparent, translucent, or opaque, and the background color may be white, black, or nearly any color of the visual spectrum. Black opal is considered the rarest, while white, gray, and green opals are the most common.

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Article Title : Opal
Article Snippet :official gemstone of Nevada. Most of the precious opal is partial wood replacement. The precious opal is hosted and found in situ within a subsurface horizon
Article Title : Belshazzar's Feast (Walton)
Article Snippet :Of precious stones, of pearls, of fine linen, Of purple, silk and scarlet, All manner vessels of ivory, All manner vessels of most precious wood, Of
Article Title : Gollum
Article Snippet :found it in the River Anduin. Gollum referred to the Ring as "my precious" or "precious", and it extended his life far beyond natural limits. Centuries
Article Title : Revelation 18
Article Snippet :wood, and all manner vessels of ivory, and all manner vessels of most precious wood, and of brass, and iron, and marble, 13 And cinnamon, and odours,
Article Title : Gold as an investment
Article Snippet :Of all the precious metals, gold is the most popular as an investment. Investors generally buy gold as a way of diversifying risk, especially through
Article Title : Ancient furniture
Article Snippet :make chariots during the 18th Dynasty. One of the most precious woods in Egypt was Walnut wood. This wood was imported from the Mediterranean Coast, and
Article Title : Marquetry
Article Snippet :them with a mixture of India ink and shellac. Furniture inlaid with precious woods, metals, glass and stones is known from the ancient world and Roman
Article Title : Marjorie Morningstar (film)
Article Snippet :warbles 'A Very Precious Love,' the film's theme number." Times critiques of the other performances: "Carolyn Jones, as Miss Wood's best friend, makes
Article Title : Sandalwood
Article Snippet :oil is extracted from the woods. Sandalwood is often cited as one of the most expensive woods in the world. Both the wood and the oil produce a distinctive
Article Title : Inlay
Article Snippet :in the production of decorative furniture, where pieces of colored wood, precious metals or even diamonds are inserted into the surface of the carcass

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