For sale is a specimen of iddingsite and chrome diopside from Mt Shadwell, Vic. Iddingsite is a mineral formed by the breakdown of olivine, and this sometimes happens in the ‘bombs” ejected by the old volcano. . . When you first look at this specimen it looks like multi color chalcoprite, with its flashy bronze color. This specimen is also loaded with pieces of emerald green chrome diopside, bar one location in Tasmania, this is the best example of chrome diopside found in Australia. There is still some remnant basalt, eroded to a brown color on one side.
MT SHADWELL, VIC.
58 x 48 x 30mm.