The effect of this photo can't be seen as fake. Black spots and flocs in the material are usually impurities, which is normal, which only shows that the purity of agate is not high and cannot be said to be false. You can simply judge the truth for yourself. The hardness of natural agate is higher than that of glass, so it can draw traces on ordinary glass, while synthetic materials often have no such hardness. If the hardness is enough, it is basically the material of agate chalcedony. It's just that this red color is not necessarily natural, but is often artificially baked. In order to increase the beauty, the industry is not fake. For reference only.