Colour of Precious Opal

@article{Sanders1964ColourOP,
  title={Colour of Precious Opal},
  author={John V. Sanders},
  journal={Nature},
  year={1964},
  volume={204},
  pages={1151-1153}
}
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285 Citations
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3
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52
Methods Citations
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285 Citations

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Designable structural coloration by colloidal particle assembly: from nature to artificial manufacturing
TLDR
This review focuses on the design of artificial structural colors based on colloidal particle assembly and summarizes the functional bioinspired structure colors and demonstrates the design principles of biomimetic structural colors via the precise structure engineering and typical bottom-up methods. Expand
Silicon-Oxygen Region Infrared and Raman Analysis of Opals: The Effect of Sample Preparation and Measurement Type
An extensive infrared (IR) spectroscopy study using transmission, specular and diffuse reflectance, and attenuated total reflection (ATR) was undertaken to characterise opal-AG, opal-AN (hyalite),… Expand
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The sedimentation of particles is a long-standing phenomenon in nature. One of the most impressive examples may be the formation of opals where the sedimentation of silica particles gradually forms… Expand
Ultracentrifugation Techniques for the Ordering of Nanoparticles
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This review summarizes the work back to the 1990s, where intuitive use of centrifugation was achieved for the fabrication of colloidal crystals to the very recent work where analytical (ultra)centrifugation is employed to tailor-make concentration gradients for advanced materials. Expand
Aberystwyth University Chromaticity of structural color in polymer thin film photonic crystals
A three-dimensional goniometric study of thin-film polymer photonic crystals investigates how the chromaticity of structural color is correlated to structural ordering. Characterization of… Expand
An expanded state diagram for the directed self-assembly of colloidal suspensions in toggled fields.
TLDR
The suspension structure and assembly kinetics of micrometer-diameter paramagnetic spheres in toggled magnetic fields are investigated and the existence of fluid, columnar, percolated, and ellipsoidal-shaped microstructures agree well with those predicted by the theoretical and computational work of Sherman et al. Expand
Annular Structural Colors from Bowl‐Like Shriveled Photonic Microshells of Cholesteric Liquid Crystals
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References

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SINCE the work of Flörke1 it has generally been accepted that natural opaline silicas fall into two broad categories: (1) specimens which give X-ray patterns indicative of an obviously, although in… Expand
Über Bragg‐Reflexe mit sichtbarem Licht an monodispersen Kunststofflatices. I
Mit Hilfe von Durchsicht- und Reflexionsspektren werden die Farberscheinungen an monodispersen Latices als Bragg-Reflexe mit sichtbarem Licht identifiziert. Durch eine vollstandige Strukturanalyse… Expand
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History of the British iron and steel industry from c. 450 B.C. to A.D. 1775 By H. R. Schubert. Pp. xxi + 445. Routledge and Kegan Paul, London. 1957. 60s. net
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SummaryA study of the optical behaviour of iridescent opal indicates very clearly that the silica present in the material has a regularly stratified structure in which the alternate layers differ in… Expand
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