True pyramids (at least the larger ones), as opposed to step pyramids in Egypt were topped by a special stone called a pyramidion, or sometimes a capstone, which was itself a miniature pyramid. It brought the pyramid structure to a point at the same angle and the same proportions as the main body. Actually, the ancient Egyptian word for the pyramidion, which could also sit atop the apex of an obelisk, was ben-benet, named for the sacred ben-ben stone kept in the temple of Heliopolis, the oldest center of the sun cult in Egypt.

See Also

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electrum
Fire
Great Pyramid
Knights Templar
manna
Pyramid
Pyramids Telescopes and Light
Sun