Lime, he did more than start a fire. He melted the rocks (cf. 1 Kings 18:38). No mean feat. How factual is it. Here's a scan and quote I found from a previous thread.
Atomic Energy on Mount Carmel
Professor A. Freeman, LL.D., Litt.D., in a letter to the editor of The Flame, said :
"Your mention of Mount Carmel in The Flame (May-June issue) reminds me of some facts revealed in the Bible Exhibition at Pembridge Road Hall, Notting Hill Gate, London W. 11, where there are thousands of Biblical exhibits. Two of these, to my mind, prove once more how historically and scientifically correct is the Bible. From New Mexico, in U. S. A., comes a blue transparent crystal. Here the first test bomb (atomic) was exploded, and all over the area were these crystals. I have a crystal found by the archaeologists which looked exactly like the one from New Mexico (and also those found after Hiroshima). I had the two crystals examined by a noted analyst in London, and he declared they were exactly the same. This stone bearing the crystal came from Mount Carmel, and was over 3,000 years old! The crystals were embedded upon it. In 1 Kings, chapter 18, we read that fire came down from heaven and destroyed the offering and the large altar stones. The stone in my possession was one of the fragments of the altar stones! The same forces at work—made by God in the beginning and just discovered by man. How true is the Bible!"
DECEMBER 22, 1948
The "crystals" are called tektites. Naturally occuring tekties are thought to be either lunar in origin, or products of large meteor impacts. They are also found at sites of nuclear explosions, although the article I'll link doesn't mention that. It is possible that the scientific community is using a different name for the examples of nuclear origin since I can't seem to find any references to nuclear explosions in any of the articles I've checked (see below about the ones found at the site of the first nulcear explosion, the trinitites). They are not "crystals", rather, they are glass made up of material fused under high temperatures. I would assume that the tekties associated with nuclear explosions would also contain unused urainium or plutonium, since not all of the fissionable material is used up in the explosion.
Flat_accent, can't get to your videos. Can you repost path.