UFO crash metal laboratory testing process and identification (link to free article)

Article on UFO metal testing I've gone through and summarised the 40 page report on metal analysis of a sample from the 1983 Llanilar Wales UFO wreckage field. The report describes the methods that can be used to tell whether a piece of metal in man-made or alien. It also identifies what the object was that caused the deposit of metal in the farmer's fields.