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Fire damage He says he was originally dubious of untested claims that the 1988 sample was taken from a re-weave.
"It was embarrassing to have to agree with them," Mr Rogers told the BBC News website.
"The radiocarbon sample has completely different chemical properties than the main part of the shroud relic," said Mr Rogers, who is a retired chemist from Los Alamos National Laboratory in New Mexico, US.But, says Mr Minor, "the church is very hesitant, very reluctant for that to be done, because they've been given so many conflicting opinions". However, I wonder why nobody considered the patch idea earlier.And even though I want to believe that it belonged to Jesus, I think it would be better if it remained a mystery.In addition to the discovery of dye, microchemical tests - which use tiny quantities of materials - provided a way to date the shroud.These tests revealed the presence of a chemical called vanillin in the radiocarbon sample and in the Holland cloth, but not the rest of the shroud.