Whatever the exact origin of these agate stones, they likely came from the hollow cavity of an ancient volcanic rock, where layers of minerals gradually built up over time. The specific coloring of agate depends on varying mineral impurities present, though due to its porous nature, agate can be dyed a variety of colors. These agate bookends are a unique and beautiful addition to any bookshelf, supporting your library with a solid weight that only millions of years of mineral formation can manage.
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White agate, cut and partly polished.