$75.00
An unidentified fumarolic minerals, i.e., those minerals precipitated directly from the gas phase as volcanic sublimates or formed as a result of gas-rock interaction, as well as the incrustations formed during cooling (degassing) of lava and scoriae. The main mineral on the surface is light yellow and mostly formless small mammillary blobs; though sometimes forming into spikey hairs. There is also a light green crystalline mineral in the mix as well. The specimen comes from the famous Mt. Vesuvius in Italy. From the antique collection of Giuseppe Garbari. This collection dates between 1890-1910.
