Worked with a fist-sized mass of crystalline pyrite today. Sat it on a fence rail out on the deck, natural shaded light. Tripod and focus rail, Pentax K-50 w/ Tamron SP Di 90mm Macro. Images stacked on the Mac using Focus Stacker and a bit of editing in Gimp. Hopefully the links won't be a problem this time, I am using the tiny url server on them.
Hmm, I did have to use the [url] tags, because the tiny url address doesn't end with '.jpg' and it evidently doesn't recognize it as an image when using the [img] tags. Ah well.
Images taken in a controlled environment or with a posed subject. All subject types.