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Hand sample, Volcanic ash, GL2769

Physical Description

Tube of layered volcanic ash, covered in a layer of iron oxide. The tube is a tree mould, which appears to have been formed by ash surrounding a tree which then rotted away. The walls of the tube are finely laminated concentrically.


Maximum dimensions (H x W x D): 130 x 150 x 270mm
Thickness: 25mm

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