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Birthstones have their roots in ancient astrology, and there have been many birthstone lists used over the years. The most common one today is based on a list first publicized by the U.S. jewelry industry in the 1950s. This list assign birthstones as follows: * January – Garnet * February – Amethyst * [...] There are certain stones and other minerals which, owing to their possession of numerous microscopically fine cavities, of a globular or tubular shape, have the appearance of “rays” or “stars,” and these are called “asteriated.” Several of such stones have been discussed already in the last chapter, and in addition to these star-like rays, [...] |
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