Collection of artificially grown crystals

This collection of crystals has been selected by the IUCr Commission on Crystal Growth and Characterization of Materials as examples of high-quality crystals grown artificially. If you would like to add your examples, please use the submission form.

The first set of images is selected at random from the complete collection. Use the options below these pictures to search or browse further. 

Ammonium Magnesium Phosphate Hexahydrate
 
BHAGAT ABHIJEET CHAKRAPANI
Ni-doped forsterite Optical image for single crystals of Ni-doped forsterite
 
Andrea Bloise
muf-7a Growing beautiful crystals like these is one of the joys of doing chemistry. These perfect specimens take the shape of a truncated rhombic dodecahedron. They are from a class of materials known as metal-organic frameworks, and they spontaneously grow from zinc metal ions and organic ligands. Although imperceptible at this scale, X-ray crystallography shows us that they have a sponge-like structure with large pores and voids. In fact, the internal surface area of a gram of these crystals is equivalent to an entire football field! These materials are being investigated for their ability to store gases such as hydrogen for powering next-generation vehicles. These photos were taken with a conventional optical microscope.
 
Lujia Liu
Gypsum Gypsum group, showing twinned crystals, obtained using gel crystallization.
 
César Menor Salván
calcium fluoride & calcium-stroncium fluoride From left to right: boules: 1 - pure SrF2; 2 - pure CaF2; 3 - Ca0.1Sr0.9F2; 4 - 1.8%(YbF3),2.5%(NaF):Ca0.66.6Sr33.3F2 5 - 1.8%(YbF3),2.5%(NaF):CaF2 optical windows: on left - 1.8%(YbF3),2.5%(NaF):CaF2; on right - 1.8%(YbF3),2.5%(NaF):Ca0.66.6Sr33.3F2
 
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