Milk Opal from Borsod-Abaúj-Zemplén County, Hungary
Hungary | |
| |
Koch: Minerals of Hungary, 1985 | |
| Szakáll-Weiszburg: Telkibánya |
| |
| |
| Szakáll: Topographia Mineralogica Hungariae III. |
| Society of Economic Geologists Student Chapter University of Miskolc (2018) Short course – Industrial minerals in the NE part of Hungary. Telkibánya November 5–8. 2018. |
|
Hosszú Hill, Megyaszó, Szerencs District, Borsod-Abaúj-Zemplén County, Hungary