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Dichroscope

Pleochroism or selective absorbtion

Dichroism in a cordierite

In uniaxial coloured stone, dichroism is possible, in bi axial stone, trichroism is possible, if absorbtion is identical no pleochroism

Trichroism in a tanzanite

Trichroism in a tanzanite
Dichroism in a cordierite

Dichroscope principle

how to use a dichroscope

For more information, visit: http://www.geminterest.com

Doubling

and the video here:

Doubling
Doubling in Mossanite and Zircon
Chelsea Conoscope Magnet Polariscope Dichroscope  UV
Refractometer Other tools Lab tools Contact us