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Jacracandas on Jacaranda Street, Sydney, Australia (rePinned 082513TLK)

What is a Quasi Crystal?: "You can normally explain in simple terms where in a crystal each atom sits – they are very symmetrical. With quasicrystals, that symmetry is broken: there are regular patterns in the structure, but never repeating. They're quite beautiful, and have potential applications in protective alloys and coatings", Professor David Phillips, president of the Royal Society of Chemistry. This year's Nobel Prize in Chemistry has been won by Daniel Shechtman for the discovery of ...

A man holds a 3-foot slab of the Fukang Pallasite. Pallasites are meteorites made up of large olivines in an iron-nickel matrix

a slice of the Fukang meteorite - so beautiful! When it slammed into the surface of Earth, there was little sign of the beauty that lay inside. But cutting the Fukang meteorite open yielded a breathtaking sight. Within the rock, translucent golden crystals of a mineral called olivine gleamed among a silvery honeycomb of nickel-iron.

Amethyst Crystal Geode or Cave