diffraction grating

If you're a fan of colorful gemstones, you've probably heard of agate, a type of chalcedony that comes in a variety of colors and patterns. But have you heard of iris agate? This lesser-known variety of agate is a true gemstone treasure, with a stunning display of colors that resemble a rainbow. In this article, we'll take a closer look at iris agate, including its composition, … [Read more...] about Iris Agate: A Gemstone with a Rainbow of Colors!