1452 Volborthite, Monument Valley, Navajo Co, Arizona, USA
Obtained in a trade with Al Wilkins. Width of view 3.5mm. Stack of 70 images.
Volborthite
ncat VHD3, Volborthite on Chrysocolla after Atacamite, all on Quartz, Breaden Hill, Marree, South Australia
Width of view 3.5mm. Stack of 55 images.
5712 Atacamite, Gypsum, Volborthite, Sweet Nell (Ironstone Lagoon), Ironstone Lagoon, Stuart Shelf, South Australia
Colourless gypsum over dark green to almost black atacamite. Yellowish green volborthite on specimen but not in photos. Ex John and Betty Weir.
