Amethyst

I am fast running out of treasures and inspiration and this is not what I had planned.
I was trying to take a group shot of "Treasures from the Earth"; six unusual rocks, some with colourful crystals on them, but they sucked!
I thought this sharp edge of amethyst crystal pretty and turned it into an abstract macro instead (I think I have taken almost every type of shot possible this time round).

Taken with the Prime 50mm and close up macro extension, in natural daylight.