dichroscope

/ (ˈdaɪkrəˌskəʊp) /

an instrument for investigating the dichroism of solutions or crystals Also called: dichroiscope, dichrooscope

Derived forms of dichroscope

dichroscopic (ˌdaɪkrəˈskɒpɪk), dichroiscopic or dichrooscopic, adjective

C19: from Greek dikhroos two-coloured + -scope

The emerald is dichroic, giving in the dichroscope a bluish-green and a yellowish-green image.

Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 |Various
The difference was so marked as to be easily seen without the dichroscope.

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |Frank Bertram Wade
The dichroscope also serves to detect the false character of doublets and paste imitations, as neither shows dichroism.

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |Frank Bertram Wade
The use of a dichroscope would have saved them that error, for the stone is singly refracting.

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |Frank Bertram Wade

The stone was therefore inspected with the dichroscope and found to possess no dichroism.

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |Frank Bertram Wade