Close up of large the piece from previous photo-some of the calcite is lilac in color. What might be the coloring agent, please? (Author: vic rzonca)
Dimensions: | 600 x 400 |
File size: | 25.68 kbytes |
Taken on: | |
Camera model: | |
Shutter speed: | |
Focal length: | |
Aperture: | |
Flash: | |
ISO: |