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.
Measurements
Maximum dimensions (H x W x D): 130 x 150 x 270mmThickness: 25mm
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