Gem Polariscope FTP-LED

Description

Product Feature

Model:FTP-LED

Upper and lower polarizers: 49mm large-diameter polarizer, removable structure. The upper polarizer is free to rotate 360°, and the stage is free to rotate 360°; the lower polarizer is fixed;

Light source: long-life, warm white LED cold light source imitating incandescent lamps, which facilitates observation of interference patterns and is more conducive to protecting polarizers;

Power supply: Equipped with an integrated global wide-voltage power supply, it can work normally within the voltage range of 100–240V, and the brightness is stable;

Accessories: Equipped with 18mm large-diameter observe Interference ball;

Power: 1W;

External dimensions: 110mm×70mm×145mm;

Weight: 650g;

Material: metal material.     

Reaction of gem under polariscope

Four bright and four dark:crystal,moonstone,scapolite,Iolite,topaz,Peridot, Diopside,Apatite,Chrysoberyl, Corundum and the synthetic corundum,Zircon

Always bright:nepherite,jadeite,Chalcedony,Rhodochrosite,colored Marble

Always full-dark:Glass imtation,Glass aerolite,Opal,Fluorite,Grossularite,Spinel,etc.

Abnormal extinction:part of glass imitation,part of opal,Fluorite,Grossularite,most part of Rhodolite and Almandine,Synthetic spinel,most diamond,and some cubic zirconia,etc.

Attention

1.Crack of gem may interfere the effect of polariscope,so pls tell them apart

2.Put the gem with high refractive index into the oil with close refrative index,contour of the gem completely disappears and the inclusions are displayed.

3.This polaricope is not fit for Opaque and small gem.  

FABLE gemological polariscopes Parameter