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3,988. We may have very big crystals at the centre of the earth. Maybe up to ten kilometres – it’s like a forest. It looks very interesting. (Earth & Crystals) Professor Kei Hirose
5,829. There are seven basic shapes of crystals in nature and a multitude of colours. (Evolution & Crystals & Humanity) Jacob Bronowski, The Ascent of Man: World Within World 10/13, BBC 1973
5,830. Of all the variety of crystals the most modest is common salt. (Evolution & Crystals & Humanity) ibid.
5,837. The notion that there is an underlying structure – a world within the world of the atom – captures the imagination of artists at once. (Evolution & Atom & Art & Humanity & Crystals) ibid.
5,838. The cubist painters for example are obviously inspired by the families of crystals. (Evolution & Art & Crystals & Humanity) ibid.
67,326. The amazing secret of crystals like this: if you slice a bit out and then squeeze it – put pressure on it – the crystal changes shape slightly, and when it does that it gives off an electric charge. (Civilisation & Crystals) James Burke, Connections III 1997 s3e3: Drop the Apple
69,004. The iron-sulphur world. That we believe is the right approach ... We feel that crystals are going nowhere. Professor Michael Russell, University of Glasgow, interview Horizon: Life is Impossible, BBC 1993
69,005. A casual glance at crystals may lead to the idea that they were pure sports of nature, but this is simply an elegant way of declaring one's ignorance. With a thoughtful examination of them, we discover laws of arrangement. With the help of these, calculation portrays and links up the observed results. How variable and at the same time how precise and regular are these laws! How simple they are ordinarily, without losing anything of their significance! The theory which has served to develop these laws is based entirely on a fact, whose existence has hitherto been vaguely discerned rather than demonstrated. This fact is that in all minerals which belong to the same species, these little solids, which are the crystal elements and which I call their integrant molecules, have an invariable form, in which the faces lie in the direction of the natural fracture surfaces corresponding to the mechanical division of the crystals. Their angles and dimensions are derived from calculations combined with observation. René-Just Haüy
69,006. A demonstrative and convincing proof that an acid does consist of pointed parts is, that not only all acid salts do Crystallize into edges, but all Dissolutions of different things, caused by acid liquors, do assume this figure in their Crystallization; these Crystals consist of points differing both in length and bigness from one another, and this diversity must be attributed to the keener or blunter edges of the different sorts of acids. Nicolas Lém
69,007. Crystallographic science does not consist in the scrupulous description of all the accidents of crystalline form, but in specifying, by the description of these forms, the more or less close relationship they have with each other. Jean-Baptiste Louis Romé de L’lsle, Cristallographie 1793
92,714. We know from their sagas that this warrior people believed in the existence of magic crystals. (Viking & Crystals) Ancient X Files: Incas Decoded & Viking Sun Stone
66,363. Hidden three hundred meters beneath the surface of the Earth is a natural wonder. A place as deadly as it is beautiful. With searing temperatures and humidity at 100% a person could die here in just fifteen minutes. Nothing like these giant crystals has ever been seen before. The largest is more than half a million years old ... They are in a place called Naica in the centre of Chihuahua ... The cave is filled with crystals five times bigger than ever seen before. (Cave & Under Ground & Crystals) Giant Crystal Cave
66,364. Some are eleven meters long weighing fifty-five tons. (Cave & Under Ground & Crystals) ibid.
66,365. These stunning pillars are made from the same mineral as plaster-board – gypsum. (Cave & Under Ground & Crystals) ibid.
66,366. Scientists have come back to this deadly cavern, filled with razor-sharp treacherous deadly crystals. Where the temperature is 45 degrees Celsius and the humidity 99%. (Cave & Under Ground & Crystals) Return to the Giant Crystal Cave, 2010
66,367. The crystal cave is located in the tiny mining cave of Naica in the Mexican state of Chihuahua two hundred and fifty kilometres south of the US border. (Cave & Under Ground & Crystals) ibid.
66,368. An alien world right here on Earth. The cavern is as high as a two-storey building and the size of a football pitch. Some crystals are eleven metres long, weighing fifty-five tons. They are as high as telegraph poles. (Cave & Under Ground & Crystals) ibid.
66,370. The scientists have discovered the crystal cave is not the only marvel buried beneath the Earth’s surface ... Others seek to find another crystal cave. (Cave & Under Ground & Crystals) ibid.
66,371. They are five times longer than any others discovered. Gypsum takes a long time to grow and needs constant conditions of water and heat. (Cave & Under Ground & Crystals) ibid.
66,372. The gypsum clung to the cave walls and floor growing over time into a giant crystal cave. But the mystery remains whether this geological marvel is unique. (Cave & Under Ground & Crystals) ibid.
66,373. The crystal cave is unforgiving on technology. (Cave & Under Ground & Crystals) ibid.
66,374. They know the crystal cave will soon be flooded, and this is their last chance to unlock its mysteries. (Cave & Under Ground & Crystals) ibid.