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kiri

(954 posts)
20. chisel marks reveal metals
Wed Jun 18, 2025, 12:25 PM
Jun 18

When one chisels into rock, tiny bits of the chisel get deposited onto the 'walls'/sides of. the cavity. The chisel may be made of bronze (copper and tin), iron, rarely another stone. This is why chisels wear out. Modern techniques can identify just a few atoms, even to recognize impurities in the bronze (lead, antimony,. .. )

Until the chisel marks are fully identified as to elemental composition, we suspect hoax. (Hoaxers never get the Cu 63/65 ratio right.)

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