The color also lacks variety (owing to lack of dichroism).    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Pink spinel is without dichroism, being singly refracting.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Not all stones that are doubly refracting exhibit dichroism.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The strong dichroism of the species also aids this contrast.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The marked dichroism of tourmaline will also help detect it.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The dichroism is feeble too, whereas that of tourmaline is strong.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Those who wish to study further the subject of dichroism should see.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Almandine garnets also show no dichroism and lack variety of color.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

They, of course, lack dichroism and are softer than sapphire as well as lighter.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The zircon, for example, is strongly doubly refracting, but shows hardly any dichroism.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The stone was therefore inspected with the dichroscope and found to possess no dichroism.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Purple spinels are singly refracting, and lack dichroism, and hence lack variety of color.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The dichroism of tourmaline is stronger than that of ruby and more obvious to the unaided eye.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

However, the amount of dichroism would be less in such a case than in a true emerald of as deep.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

It had marked dichroism -- showing a smoky blue color in one direction and a yellowish white in another.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

They exhibited dichroism and scratched topaz and it was therefore decided that they at least were genuine.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Also, owing to the dichroism of the ruby the red is variable according to the changing position of the stone.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Although strongly doubly refracting, the hyacinth shows scarcely any dichroism and thus lacks variety of color.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

This stone is doubly refracting, exhibiting extremely strong dichroism, especially in the blue and the green varieties.    From Wordnik.com.  [The Chemistry, Properties and Tests of Precious Stones] Reference

The dichroscope also serves to detect the false character of doublets and paste imitations, as neither shows dichroism.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

The test is most useful for emerald, ruby, sapphire, tourmaline, kunzite and alexandrite, all of which show marked dichroism.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

It is deep in shade, less red than cinnamon stone, and with marked dichroism, which both brown diamond and brown garnet lack.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

They are also singly refracting and hence exhibit no dichroism and therefore lack variety of color as compared with true ruby.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Purple spodumene (kunzite) is pinkish to lilac in shade -- usually pale, unless in large masses, and it shows very marked dichroism.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

We analyzed these proteins by circular dichroism (CD).    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

M.F.R. was responsible for the circular dichroism measurements.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

Jess TJ, Price NC (2005) How to study proteins by circular dichroism.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Greenfield NJ (2006) Using circular dichroism spectra to estimate protein secondary structure.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

We compared the circular dichroism (CD) spectra of the wild-type and mutant proteins losing DNA binding activities.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Thus, we used circular dichroism (CD) to allow comparison of the intrinsic helical structure present in each protein.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The circular dichroism spectra were obtained on a Jasco J810 spectrapolarimeter at 20°C using a path-length of 1 mm.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Whitmore L, Wallace BA (2008) Protein secondary structure analyses from circular dichroism spectroscopy: methods and reference databases.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

It also describes the theory and computation of circular dichroism and optical rotation, including magnetically induced optical phenomena.    From Wordnik.com.  [AvaxHome RSS:] Reference

If there is still no dichroism it is not.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Circular dichroism spectra were recorded.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

A, Far-UV circular dichroism spectra showing the molar ellipticity (measured in deg cm.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

'... but shows hardly any dichroism.'.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Circular dichroism.    From Wordnik.com.  [physicsworld.com: all content] Reference