Amethyst from selected localities.
Czech Republic | |
| Machek P.: Ametyst Ciboušov. Minerál, 1995, 3, 1, 28-31. |
Germany | |
| Lapis, 19 (4), 13-22+50. |
Czech Republic | |
| Machek P.: Ametyst Ciboušov. Minerál, 1995, 3, 1, 28-31. |
Germany | |
| Lapis, 19 (4), 13-22+50. |