This 64 carat natural wood fossil boulder opal from Winton, Queensland displays vibrant cyan, blue, and green fire across the lower half of the stone. The luminous color appears in bold patches and sections throughout the brown wood fossil matrix, creating contrast between bright fire and preserved organic texture. Winton boulder opals include rare wood fossil specimens where ancient timber has been replaced by precious opal over millions of years, preserving natural wood structure while adding iridescent beauty.

Measuring approximately 45 × 18 × 7.5 millimeters, this pendant arrives ready to wear on a brown adjustable cord necklace. The polished freeform shape follows natural contours of the fossilized wood while showcasing the concentrated areas of color play on the lower section. The comfortable size suits everyday casual wear or bohemian style jewelry. For those who prefer metal settings, the drilled stone can be professionally reset into sterling silver, yellow gold, white gold, rose gold, or bronze designs.

This is a 100% natural, untreated solid boulder opal, not a doublet or triplet. The opal and wood fossil formed together as silica rich water slowly replaced ancient timber, creating this authentic Queensland gemstone with distinctive character. The wood fossil backing provides natural stability and durability, with the preserved organic matrix serving as foundation for the precious opal sections.

Boulder opals like this piece represent quality Australian gemstones at accessible price points. As the official opal October birthstone, this pendant offers October born individuals a meaningful gift that celebrates their birth month with authentic natural beauty and geological history. The earthy appeal and vibrant fire make this an excellent choice for collectors or anyone seeking statement jewelry with natural character. This boulder opal pendant necklace will arrive securely packaged in an Opal Galaxy luxury gift box, ready to wear immediately.