Natural History, including Apex the Stegosaurus

Natural History, including Apex the Stegosaurus

View full screen - View 1 of Lot 44. Petrified Slice of Colla Wood.

Petrified Slice of Colla Wood

Miocene to Pliocene (approx. 23-5 million years ago), Zile, Turkey

No reserve

Live auction begins on:

July 17, 02:00 PM GMT

Estimate

4,000 - 6,000 USD

Bid

2,000 USD

Lot Details

Description

Petrified Slice of Colla Wood

Miocene to Pliocene (approx. 23-5 million years ago)

Zile, Turkey


13⅜ x 6½ x ¾ inches (34 x 16.5 x 1.9 cm). 4 lb (1.81 kg).


Sliced and polished section of fossilized wood, rigged on reverse side for wall hanging. Overall condition is very good.

Colla wood is a rare type of petrified wood that can only be found near the Black Sea town of Zile, Turkey. Having fossilized over an active copper deposit, copper-containing minerals such as azurite, malachite, and chrysocolla (hence the name "colla wood") have absorbed into the wood, slowly replacing the original organic material and creating vibrant streaks of blue and green. Several other minerals, such as chalcedony and hematite, can produce red, brown, and white accents in colla wood, as seen in the specimen offered here.