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obsidian, GL2020

Physical Description

Large piece of roughly shaped obsidian, with some rough spots where other rock is attached and some sharp edges. Has whorls and ridges where the inherent stresses and structure have made pieces come away leaving a broken glass-like pattern.


Locality, suggested by Tony Reay: Dr Tony Reay

Field Collection

Ben Lomand?


Maximum dimensions (H x W x D): 150 x 200 x 250mm

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