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and gold alloys
The complete kit option (148
For longest life
Cut 00 is coarsest
up to 900–1200 grit (20–15 micron) with light pressure
Portable Polariscope With Flashlight & Case Gauges & Calipers and gold alloysThis portable polariscope is designed to differentiate between singly refractive (isotropic) and doubly refractive (anisotropic) stones. By placing a gemstone between two polarizing filters and rotating the top lens, you can observe characteristic light reactions that reveal important optical propertiesan essential test in gem identification. Features Determines isotropic vs. anisotropic gemstones Rotating top polarizing lens for observing optical
