This is a dark colored vial containing about 2ml of Refractive Index Fluid for use with any gem refractometer.
Comparable to more expensive chemicals, this one is economical.
It works great with any stone up to about 1.80+.
Contained in an amber glass vial, with an applicator in the lid to allow application of a tiny amount.
Does not contain Arsenic.
If you are not sure about this item, please check my feedback to see buyer's satisfication. We carry many gemological tools.
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