Discover gemstone pleochroism with ease! This foldaway dichroscope is perfect for observing color variations in birefringent gemstones. Simply illuminate your sample with white light, maintain a 2-5 cm viewing distance, and rotate for a full 360-degree observation. Unveil the beauty of true dichroism in no time! Features a clear lens and a foldable design. Compact and portable. Uses white light sources such as incandescent lamps. Maintain a 2-5 cm distance between the dichroscope and the gemstone during inspection; rotating 360 degrees allows observation of trichroism from multiple directions. Item type: Dichroscope. Lens diameter: 2 cm. Essential tool for gemologists, jewelers, and gemstone collectors. Ideal for analyzing transparent and semi-transparent crystals, helping to distinguish true dichroism from color banding with ease. Color: Black. Material: Aluminum alloy. Package contents: 1 x Pocket Dichroscope. Jewelry testing only; only the above package content is included, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.