Opal from selected localities.
Hungary | |
| |
[Opal-A var: Opal-AN] Own found,2006 | |
Book: 100 collecting sites of Hungary | |
| http://www.geomania.hu/lelohely.php?lelohely=323 |
| |
http://geomania.hu/lelohely.php?lelohely=416 | |
Lelőhely 2011/7 | |
MAMIT | |
| Szakáll-Jánosi: Minerals of Hungary |
GEODA/1997 | |
| Szakáll & Jánosi: Minerals of Hungary, 1995 |
| Mineral Species of Hungary, 2005 |
Füledugó Quarry, Gyöngyöstarján, Gyöngyös District, Heves County, Hungary