|Place of Origin:||Guangdong, China|
|Minimum Order Quantity:||1PCS|
|Delivery Time:||7-10 days after order confirmation.|
|Payment Terms:||T/T, Western Union,Paypal|
|Product Name:||Portable Polariscope||Light Source:||LED Cold Light|
Gemological labs, gemology schools/institutes, gem&jewelry industrials, --etc.
The polariscope is one of the most underestimated tools in gemology. Most gemologists use it to quickly determine if the stone at hand is isotropic or anisotropic or, at best, to determine the optic character of gemstones.
In addition, the polariscope is very useful for distinguishing solid inclusions from negative inclusions as well as for spotting polysynthetic twinning.
A polariscope uses polarized light for gem identification. It consists of two polarized filters, one on the top and one on the bottom of the instrument. Both the polarizer and the analyzer have their own vibrational planes. When the vibrational plane of the polarizer is at right angles to the vibrational direction of the analyzer, the field between them remains dark. This position is known as the "crossed position". In this position, gems can be tested to determine if they are:
Fable Brand Polariscope with:
You can know the axial of Gemstone then can be grading the type of Gemstone.
|1.Product Name:Desktop type Polariscope|
|2.Product Size:110mm Length*70mm Width*145mm Height|
|3.High quality polarizing plate, detachable structure, on the 360 degrees of freedom rotation|
|4.Light source:High brightness, long life LED white light bulbs|
|5.Carrier platform: 360 degree rotation|
|6.Conoscope: high condensing lens|