Nice webbed piece !
The subtle lime green colouration is caused by the presence of nickel mineralisation.
Dimensions at widest points approximately 180 mm x 110 mm x 8.5 mm thick.
From Yerilla, Western Australia.
Tumble Polished mixed Australian gemstones MXT101
$25.00... Plus 10% GST in Australia
1 kg. Tumble Polished Noreena Jasper NJT110
$32.00... Plus 10% GST in Australia
Starry Jasper SJ106
$68.00... Plus 10% GST in Australia
Polished Lilac Mookaite MK281
$36.00... Plus 10% GST in Australia