Polished fossil stromatolite slab. Conophyton garganicum australe. CPH119 polished snakeskin jasper 66 mm x 31 mm

66 mm x 31 mm x 6 mm thick dome

The green colouration is caused by traces of nickel and/or chromium

Large reserves of this stone occur in Western Australia

75 mm x 60 mm x 8 mm thick

Sizes approx

Polished fossil stromatolite slab. Conophyton garganicum australe. CPH119 polished snakeskin jasper 66 mm x 31 mmCPH119. Fossil stromatolite slab polished on one side. Displays excellent cross section of circular columns ! Conophyton garganicum australe from the Mesoproterozoic "Top Camp Formation". Age is approx. 1. 0 1. 6 billion years. From the Ashburton region in Western Australia. Approx. 265 mm x 220 mm x 14 mm thick . 1,998 grams.