Specifications

Calcite Dichroscope
* excellent iceland spar,
* black appearance
* big eyepiee,easy
* leather packing

Calcite Dichroscope with excellent iceland spar,black appearance aviod refrecting interference;gift box package.It is the best instrument to distingush pleochromatism.Pleochroscope is most clear in the vertical direction,there is no pleochromatism in the horizontal direction,so we must view in different direction.

 

 

Jewellery	Intensity of Pleochromatism	Color of Pleochromatism
Emerald	weak-medium	green-olivine
Red tourmaline	medium	red-pink
Green tourmaline	weak-medium	green
Ruby	medium	red/orange
Amethyst	weak-medium	fuchsia
Purple scapolite	meadium-strong	blue/light indigon
Bluesapphire	medium-strong	blue/green
Bluezircon	medium	blue/achromatism
Blue topaz	weak-medium	blue/achromatism
Acquamarine	medium-strong	blue/achromatism
Lolite	strong	light blue/purple
Blue apatite	weak-medium	blue/light blue
Green apatite	weak-medium	green/achromatism
Peridot	weak	green/light yellow
Green andalusite	strong	green/light red
Red garnet	no	no
Spinel	no	no
Cubic zirconia	no	no
Glass	no