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Ruby Filter for Testing Red & Pink Gemstones
Ruby Filter is a filter that is extremely useful in differentiating red stones such as Ruby, Spinel, Tourmaline, and Garnets from others that might look similar in comparison. Using the Filter is as simple as holding it close to your eye, look at the stones, examine your gems and reveal their true identity.
Below are the appearance of various red and pink gemstones when a Ruby a Filter is use:
Type of Stone or GemstoneColour Shown through Filter
Red BerylGrey
Almandine GarnetGray
Pyrope GarnetBrownish
Rhodolite GarnetGray
Red GlassDark Purple
RubyBright Blue
Pink SapphireLight Blue
SpinelGray / Blue
Pink SpinelLight Blue
TourmalineGray / Purple
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