Opal Veins Taken by Aram Dulyan (User:Aramgutang) Date: 18'FEB 2005 Blue-green opal veins in ferruginous (iron-rich) rock from Australia. Photograph taken...
described at URL: https://www.flickr.com/photos/jsjgeology/29720443701/ operator: Flickr URL: https://live.staticflickr.com/8747/29720443701_f2833aed16_o.jpg...
DescriptionPrecious opal vein in sandstone (Bulldog Shale, Lower Cretaceous; Andamooka Opal Fields, South Australia) 1 (29802995415).jpg Precious opal from the Cretaceous...
14.5 x 5.6 x 3.3 cm. This is a large, gracefully curving vein of multicolored boulder opal in the host rock, from the classic mines of Queensland. Most...
DescriptionOpal szklary.JPG English: Opal veins. Szklary near Ząbkowice Ślaskie, Szklary serpentinite massif (Fore-Sudetic Block), Lower Silesia, Poland...
specimens, and has excellent deep gemminess to some of the veins - BETTER IN PERSON! Deutsch: Opal Fundort: Rodriguez Dam, Tijuana, Tijuana, Baja California...
9 x 2.6 cm. A half-centimeter-thick vein of transparent, orange fire opal from a dam site near Tijuana. Fire opal is often fashioned into jewelry. It...
and leaving big caves in the top of the veins. The sulfuric acid attacked the surrounding shales... hence the opal stalactites and stalagmites in the caves...
specimens, and has excellent deep gemminess to some of the veins - BETTER IN PERSON! Deutsch: Opal Fundort: Rodriguez Dam, Tijuana, Tijuana, Baja California...
green-fire veins up to an amazing 1.2 cm thick in the main portion. It retains the shape of the original wood. Ex. Charlie Key. Deutsch: Opal Fundort: Virgin...