Free Form Green Opal – Polished Display Specimen OVERSTOCK representing an independent evolutionary solution

representing an independent evolutionary solution to the same navigational challenge

making them formidable nocturnal predators in the natural world

Assorted males and females

Tenodera aridifolia

Free Form Green Opal – Polished Display Specimen OVERSTOCK representing an independent evolutionary solutionA beautifully polished free form specimen of Green Opal, hand cut with a flat base for effortless display. Each piece is graded by weight, so dimensions will vary naturally, and the unique character of each stone in colour, pattern, shape, and finish means no two specimens are alike. Green Opal is a common Opal formed from a silica rich solution of silicon dioxide and water. As water percolates through the earth, it picks up silica from sandstone;