Urea + Alum dissolved in vinegar, fast dry in oven, no cover glass, 4x and 10x obj. polarized with retarder, # 4 is Zerene Stack,
U + A
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- Robert Berdan
- Posts: 319
- Joined: Wed Oct 18, 2017 8:58 pm
- Location: Calgary
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Nice crystals
Nice crystals. I have played with Urea as melts and from solutions and my samples looked very different. It is amazing how small changes to the solvent, drying condition or additions to the solution can change the shape of the crystals. Even in a single batch I see a lot of variation.
Nice photos.
RB
Nice photos.
RB