Quartz from Upponyi Mountains, Borsod-Abaúj-Zemplén County, Hungary
Hungary | |
| geomania.hu (2011) http://geomania.hu/lelohely.php?lelohely=104 |
| Koch: Minerals of Hungary, 1985 |
Hungary | |
| geomania.hu (2011) http://geomania.hu/lelohely.php?lelohely=104 |
| Koch: Minerals of Hungary, 1985 |