Free Form Green Opal – Polished Display Specimen Size:Medium 501g–750g Macro photography and scientific illustration

Macro photography and scientific illustration

and these examples demonstrate the accomplished craftsmanship of their makers

displaying the distinctive markings and structural detail that make this CETONIINAE species a standout in any natural history collection

This museum-quality specimen is professionally mounted under glass in an elegant wall-hanging frame

Free Form Green Opal – Polished Display Specimen Size:Medium 501g–750g Macro photography and scientific illustrationA 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;