London Dichroscope

Incorporates two polarizing sheets mounted at right angles to each other allowing the London Dichroscope necessity to sample rays from two different areas of the same stone.

Examples are views of a Tourmaline/ruby gemstone with a London Dichroscope with a backlight. With the same ray of light entering the gemstone both sides should be the same colour under the filter.

• Size Length with lense open 85mm and closed 55mm
• Width 30mm
• Thickness 12mm
• The diameter of the filter is 21mm
• Material Plastic Black
• Weight 16grms