Polariscope, mains-powered. Toolsets mostly for jewellery perfectly polished surface

perfectly polished surface

AND advanced users can glean further information by rotating the stone to see if either or both of the shadow edges move

You can often see the two colours by viewing the stone from different directions

3X magnification

some marquis and ovals)

Polariscope, mains-powered. Toolsets mostly for jewellery perfectly polished surfaceSummary Approx. 7 X 6 X 5 inches, and the filter ("platform") 35mm diameter. Large base, easily rotates. Stone holder attaches to base for easy positioning of stone. Built in light. Guarantee: 1 year. Detail This instrument will show you if a gemstone is singly or doubly refractive. For instance, Moissanite is strongly doubly refractive, diamond is singly refractive. This is, therefore, a very cheap (if a little fiddly) method of distinguishing