It was originally posted at https://www.photomacrography.net/forum/ ... hp?t=39712 (image #1 of that thread).
We're reproducing the image here, separately, as part of our procedure to provide clarity when the front page shows one image from a larger collection.
Please discuss in its original thread, with cross-references as needed. Thanks!
--Rik
Fluorite (by soldevilla)
![Image](https://live.staticflickr.com/65535/47974014057_d89696b215_o.jpg)