I am interested in your question as well, so I did some digging! According to wikipedia&#x27;s article on Saturn&#x27;s rings [1], the &quot;main rings&quot; are composed mostly of particles ranging from ~1cm to 10m in size.<p>Apparently observations of the &quot;F ring&quot; are consistent with particles ranging from microns to centimeters [2]:<p>&quot;Comparison of optical depth profiles across the F Ring... indicates that centimeter-sized particles are the dominant source of opacity in a core ∼ 1km wide, while the micrometer-sized dust dominates in a much wider “envelope” that extends inward from the core.&quot;<p>The &quot;E ring&quot; seems to be composed predominantly of micron-sized grains, and is presumed to be fed by dust coming from Enceladus [3] [4].<p>I am not an astroplatentary scientist so I had to look up a map of Saturn&#x27;s rings [5], apparently the E ring is very diffuse, and F is on the outside of the visible bands.<p>[1] - <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Rings_of_Saturn#C_Ring" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Rings_of_Saturn#C_Ring</a><p>[2] - <a href="http:&#x2F;&#x2F;www.sciencedirect.com&#x2F;science&#x2F;article&#x2F;pii&#x2F;001910359290107I" rel="nofollow">http:&#x2F;&#x2F;www.sciencedirect.com&#x2F;science&#x2F;article&#x2F;pii&#x2F;00191035929...</a><p>[3] - <a href="http:&#x2F;&#x2F;www.sciencedirect.com&#x2F;science&#x2F;article&#x2F;pii&#x2F;001910359290131P" rel="nofollow">http:&#x2F;&#x2F;www.sciencedirect.com&#x2F;science&#x2F;article&#x2F;pii&#x2F;00191035929...</a><p>[4] - <a href="http:&#x2F;&#x2F;www.sciencemag.org&#x2F;content&#x2F;311&#x2F;5766&#x2F;1416.short" rel="nofollow">http:&#x2F;&#x2F;www.sciencemag.org&#x2F;content&#x2F;311&#x2F;5766&#x2F;1416.short</a><p>[5] - <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Rings_of_Saturn#&#x2F;media&#x2F;File:Saturn%27s_Rings_PIA03550.jpg" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Rings_of_Saturn#&#x2F;media&#x2F;File:Sa...</a>