Auction Name: Thursday Natural History Select Auction

Lot Number: 78018

Shortcut to Lot: HA.com/212551*78018

Polished Petrified Conifer Slab
Araucarioxylon arizonicum
Triassic
Chinle Formation
Arizona, USA
7.76 x 5.51 x 2.87 inches (19.70 x 14.00 x 7.28 cm)

Radiant sections of crimson, gold, slate blue, and smoky gray spread across this polished Petrified Conifer Slab, revealing a vivid record of mineral replacement within ancient wood. The central starburst pattern highlights the original growth structure, where Silica-rich solutions captured the tree's form and transformed it into a richly colored stone. Subtle fractures and fine internal veining add visual depth, allowing light to play across the surface in shifting tones. The outer rim preserves the natural contour of the trunk, offering a striking contrast to the high-gloss interior. This vibrant slab presents a beautiful and display-ready example of the remarkable color variation found in premium Petrified Wood.

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