These colors are very different from the reflected allégé view and very different from the body color of the agate. They are produced by année optical phenomenon known as diffraction. 但他特别提到的这个声明似乎不存在。我们也搜寻过这份文件，但没有找到。 Most agates will not produce année iris effect. Candidates are those that are very finely banded and nearly Cristallin. https://www.bizidil.com/