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Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond. It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite , and amorphous carbon , with minor crystalline precipitates filling pores and occasional reduced metal inclusions. [ 1 ]
Black Onyx Onyx. Onyx - Hebrew שֹׁהַם shoham, Greek ὀνύχινος onychinos, Latin lapis onychinus. The eleventh stone of the breastplate in the Hebrew and the Vulgate (Exodus 28:20, 39:13), representing the tribe of Joseph. In the Septuagint it is the twelfth stone and the fifth in Ezekiel 28:13 in the Hebrew, but the twelfth ...
Hypatia is a small stone found in Egypt in 1996. It has been claimed to be both a meteorite [1] and kimberlite debris. [2] [3] It has also been claimed to be the first known specimen of a comet nucleus on Earth, although defying physically-accepted models for hypervelocity processing of organic material. [4]
The stone quarries of ancient Egypt once produced quality stone for the building of tombs and temples and for decorative monuments such as sarcophagi, stelae, and statues. [1] These quarries are now recognised archaeological sites .
The Black Stone is seen through a portal in the Kaaba. The Black Stone (Arabic: ٱلْحَجَرُ ٱلْأَسْوَد, romanized: al-Ḥajar al-Aswad) is a rock set into the eastern corner of the Kaaba, the ancient building in the center of the Grand Mosque in Mecca, Saudi Arabia.
Mons Porphyrites (today Jabal Abu Dukhkhan) is the mountainous site of a group of ancient quarries in the Red Sea Hills of the Eastern Desert in Egypt. Under the Roman Empire, they were the only known source of the purple "imperial" variety of porphyry. They were exploited between the 1st and 5th centuries AD. [1]
The Shabaka Stone, sometimes Shabaqo, is a relic incised with an ancient Egyptian religious text, which dates from the Twenty-fifth Dynasty of Egypt. [1] In later years, the stone was likely used as a millstone, which damaged the hieroglyphs. This damage is accompanied by other intentional defacements, leaving the hieroglyphic inscription in ...
The restored pyramidion of the Red Pyramid at Dashur, on display beside the pyramid. A badly damaged white Tura limestone pyramidion, thought to have been made for the Red Pyramid of Sneferu at Dahshur, has been reconstructed and is on open-air display beside that pyramid; it presents a minor mystery, however, as its angle of inclination is steeper than that of the edifice it was apparently ...